diff --git a/README b/README
index 8dcc782..1e4340b 100644
--- a/README
+++ b/README
@@ -3,7 +3,7 @@
                               README file for
 
 
-               Bywater BASIC Interpreter/Shell, version 2.50
+               Bywater BASIC Interpreter/Shell, version 2.60
                ---------------------------------------------
 
                     Copyright (c) 1993, Ted A. Campbell
@@ -27,6 +27,9 @@
                Version 2.50 modifications by Paul Edwards,
                                 4 June 2009
 
+               Version 2.60 modifications by Paul Edwards,
+                              6 November 2012
+
 
 
 
@@ -200,6 +203,13 @@ CHANGE HISTORY
 
 
 
+CHANGES FROM 2.50 to 2.60
+
+   * New maths functions and append mode support from Edmond Orignac
+   
+   * Bug fixes
+
+
 CHANGES FROM 2.40 to 2.50
 
    * Bug fixes
diff --git a/bwb_dio.c b/bwb_dio.c
index 7110c30..d9b6860 100644
--- a/bwb_dio.c
+++ b/bwb_dio.c
@@ -74,7 +74,7 @@ static int dio_flush();
 	DESCRIPTION:    This function implements the BASIC OPEN
 			command to open a stream for device input/output.
 
-        SYNTAX: 1. OPEN "I"|"O"|"R", [#]n, filename [,rlen]
+        SYNTAX: 1. OPEN "I"|"O"|"R"|"A", [#]n, filename [,rlen]
                 2. OPEN filename [FOR INPUT|OUTPUT|APPEND|] AS [#]n [LEN=n]
 
 ***************************************************************/
@@ -239,8 +239,14 @@ bwb_open( l )
          mode = DEVMODE_RANDOM;
          }
 
-      /* error: none of the appropriate modes found */
+      /* Added by EO: open file for sequential APPEND (GW-Basic, Burroughs B20)*/ 
+
 
+      else if ( ( first[ 0 ] == 'a' ) || ( first[ 0 ] == 'A' ))
+         {
+         mode = DEVMODE_APPEND;
+         }
+      /* error: none of the appropriate modes found */
       else
          {
 #if PROG_ERRORS
@@ -294,7 +300,7 @@ bwb_open( l )
             }
          else if ( strcmp( atbuf, "APPEND" ) == 0 )
             {
-            mode = DEVMODE_RANDOM;
+            mode = DEVMODE_APPEND;
             }
          else
             {
@@ -429,7 +435,9 @@ bwb_open( l )
       return bwb_zline( l );
       }
 
-   if ( dev_table[ req_devnumber ].mode == DEVMODE_CLOSED )
+   if ( ( dev_table[ req_devnumber ].mode == DEVMODE_CLOSED ) &&
+        /* PE: JBV mod to close requires this open check */
+      ( dev_table[ req_devnumber ].buffer != NULL ) )
       {
 #if INTENSIVE_DEBUG
       sprintf( bwb_ebuf, "in bwb_open(): using previously closed file (and buffer)" );
diff --git a/bwb_mth.c b/bwb_mth.c
index 7da1764..ee97ab9 100644
--- a/bwb_mth.c
+++ b/bwb_mth.c
@@ -2042,4 +2042,720 @@ round_int( x )
       }
    }
 
+/***************************************************************
+
+        FUNCTION:       fnc_cosh()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined COSH function, returning the
+                        hyperbolic cosine of the argument.
+
+	SYNTAX:		COSH( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_cosh( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_cosh( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_cosh(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function COSH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function COSH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) cosh( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+
+/***************************************************************
+
+        FUNCTION:       fnc_sinh()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined SINH function, returning the
+                        hyperbolic sine of the argument.
+
+	SYNTAX:		SINH( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_sinh( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_sinh( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_sinh(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function SINH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function SINH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) sinh( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+/***************************************************************
+
+        FUNCTION:       fnc_tanh()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined TANH function, returning the
+                        hyperbolic tangent of the argument.
+
+	SYNTAX:		TANH( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_tanh( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_tanh( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_tanh(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function TANH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function TANH().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) tanh( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+
+
+
+/***************************************************************
+
+        FUNCTION:       fnc_log10()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined LOG10 function, returning the
+                        decimal logarithm of the argument.
+
+	SYNTAX:		LOG10( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_log10( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_log10( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_log10(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function LOG10().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function LOG10().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) log10( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+
+
+
+/***************************************************************
+
+        FUNCTION:       fnc_log2()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined LOG2 function, returning the
+                        base 2 logarithm of the argument.
+
+	SYNTAX:		LOG2( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_log2( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_log2( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_log2(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function LOG2().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function LOG2().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) log( (double) var_getnval( &( argv[ 0 ] ) ) )/log(2.0);
+
+   return &nvar;
+
+   }
+
+
+/***************************************************************
+
+        FUNCTION:       fnc_acos()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined ACOS function, returning the
+                        arccosine of the argument.
+
+	SYNTAX:		ACOS( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_acos( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_acos( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_acos(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function ACOS().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function ACOS().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) acos( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+/***************************************************************
+
+        FUNCTION:       fnc_asin()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined ASIN function, returning the
+                        arc sine of the argument.
+
+	SYNTAX:		ASIN( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_asin( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_asin( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_asin(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function ASIN().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function ASIN().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) asin( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+/***************************************************************
+
+        FUNCTION:       fnc_cotan()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined COT function, returning the
+                        cotangent of the argument.
+
+	SYNTAX:		COT( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_cotan( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_cotan( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_cotan(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function COT().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function COT().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
 
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) 1.0/tan( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+/***************************************************************
+
+        FUNCTION:       fnc_cosecant()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined CSC function, returning the
+                        cosecant(=1/sin) of the argument.
+
+	SYNTAX:		CSC( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_cosecant( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_cosecant( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_cosecant(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function CSC().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function CSC().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) 1.0/sin( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
+
+
+/***************************************************************
+
+        FUNCTION:       fnc_secant()
+
+        DESCRIPTION:    This C function implements the BASIC
+                        predefined LOG2 function, returning the
+                        secant(=1/cos) of the argument.
+
+	SYNTAX:		SEC( number )
+
+***************************************************************/
+
+#if ANSI_C
+struct bwb_variable *
+fnc_secant( int argc, struct bwb_variable *argv, int unique_id  )
+#else
+struct bwb_variable *
+fnc_secant( argc, argv, unique_id  )
+   int argc;
+   struct bwb_variable *argv;
+   int unique_id;
+#endif
+   {
+   static struct bwb_variable nvar;
+   static int init = FALSE;
+
+   /* initialize the variable if necessary */
+
+   if ( init == FALSE )
+      {
+      init = TRUE;
+      var_make( &nvar, NUMBER );
+      }
+
+#if INTENSIVE_DEBUG
+   sprintf( bwb_ebuf, "in fnc_secant(): received f_arg <%f> ",
+      var_getnval( &( argv[ 0 ] ) ) );
+   bwb_debug( bwb_ebuf );
+#endif
+
+#if PROG_ERRORS
+   if ( argc < 1 )
+      {
+      sprintf( bwb_ebuf, "Not enough parameters (%d) to function SEC().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+   else if ( argc > 1 )
+      {
+      sprintf( bwb_ebuf, "Too many parameters (%d) to function SEC().",
+         argc );
+      bwb_error( bwb_ebuf );
+      return NULL;
+      }
+#else
+   if ( fnc_checkargs( argc, argv, 1, 1 ) == FALSE )
+      {
+      return NULL;
+      }
+#endif
+
+   /* assign values */
+
+   * var_findnval( &nvar, nvar.array_pos ) 
+      = (bnumber) 1.0/cos( (double) var_getnval( &( argv[ 0 ] ) ) );
+
+   return &nvar;
+
+   }
diff --git a/bwb_prn.c b/bwb_prn.c
index d97c56e..c92bd44 100644
--- a/bwb_prn.c
+++ b/bwb_prn.c
@@ -171,8 +171,8 @@ bwb_print( l )
 
          return bwb_zline( l );
          }
-
-      if ( dev_table[ req_devnumber ].mode != DEVMODE_OUTPUT )
+/* Append Mode must also be taken into account (EO) */ 
+      if ( dev_table[ req_devnumber ].mode != DEVMODE_OUTPUT && dev_table[ req_devnumber ].mode != DEVMODE_APPEND )
          {
 #if PROG_ERRORS
          bwb_error( "in bwb_print(): Requested device is not open for OUTPUT." );
diff --git a/bwb_tbl.c b/bwb_tbl.c
index 1d5b8ca..c92c4f3 100644
--- a/bwb_tbl.c
+++ b/bwb_tbl.c
@@ -210,6 +210,16 @@ struct bwb_function bwb_prefuncs[ FUNCTIONS ] =
 #endif
 
 #if ANSI_FUNCS			/* Functions required for ANSI Full BASIC */
+   { "COSH",     NUMBER,         1,   fnc_cosh,        (struct bwb_function *) NULL, 0}, 
+   { "SINH",     NUMBER,         1,   fnc_sinh,        (struct bwb_function *) NULL, 0}, 
+   { "TANH",     NUMBER,         1,   fnc_tanh,        (struct bwb_function *) NULL, 0},
+   { "LOG10",     NUMBER,         1,   fnc_log10,        (struct bwb_function *) NULL, 0},
+   { "LOG2",     NUMBER,         1,   fnc_log2,        (struct bwb_function *) NULL, 0},
+{ "ACOS",     NUMBER,         1,   fnc_acos,        (struct bwb_function *) NULL, 0},
+{ "ASIN",     NUMBER,         1,   fnc_asin,        (struct bwb_function *) NULL, 0},
+{ "COT",     NUMBER,         1,   fnc_cotan,        (struct bwb_function *) NULL, 0},
+{ "CSC",     NUMBER,         1,   fnc_cosecant,        (struct bwb_function *) NULL, 0},
+{ "SEC",     NUMBER,         1,   fnc_secant,        (struct bwb_function *) NULL, 0},
 #endif
 
    /* The remainder are core functions defined for ANSI Minimal BASIC */
diff --git a/bwbasic.doc b/bwbasic.doc
index 934691c..41aec78 100644
--- a/bwbasic.doc
+++ b/bwbasic.doc
@@ -1786,19 +1786,19 @@ CONTENTS:
    remain unimplemented are:
 
    ACCESS
-   ANGLE
+   ANGLE (angle of the vector (X,Y) with the X axis in anticlockwise sense in ECMA-116)
    AREA
    ARITHMETIC
    ARRAY
    ASK
    BSTR
    BVAL
-   CEIL
+   CEIL smallest integer >=X
    CELLS
    CLIP
    COLLATE
    CONNECT
-   COSH
+ !  COSH
    DATUM
    DEBUG
    DECIMAL
@@ -1818,8 +1818,8 @@ CONTENTS:
    KEY
    LCASE
    LINES
-   LOG10
-   LOG2
+ !  LOG10 
+ !  LOG2
    MAT
    MIX
    MULTIPOINT
@@ -1839,8 +1839,8 @@ CONTENTS:
    SEIZE
    SEND
    SHIFT
-   SINH
-   TANH
+ !  SINH
+ !  TANH
    TIMEOUT
    TRACE
    TRANSFORM
diff --git a/bwbasic.h b/bwbasic.h
index c6cc59c..8b5f43a 100644
--- a/bwbasic.h
+++ b/bwbasic.h
@@ -41,7 +41,7 @@
 
 /* Version number */
 
-#define VERSION         "2.50"          /* Current version number */
+#define VERSION         "2.60"          /* Current version number */
 
 /***************************************************************
 
@@ -419,7 +419,7 @@
 #define FUNCS_COMMON	0
 #endif
 #if ANSI_FUNCS
-#define FUNCS_ANSI	0
+#define FUNCS_ANSI	10
 #else
 #define FUNCS_ANSI	0
 #endif
@@ -1160,6 +1160,16 @@ extern struct bwb_variable * fnc_csng( int argc, struct bwb_variable *argv, int
 extern struct bwb_variable * fnc_instr( int argc, struct bwb_variable *argv, int unique_id );
 extern struct bwb_variable * fnc_str( int argc, struct bwb_variable *argv, int unique_id );
 extern struct bwb_variable * fnc_inkey( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_cosh( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_sinh( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_tanh( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_log10( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_log2( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_acos( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_asin( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_cotan( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_secant( int argc, struct bwb_variable *argv, int unique_id );
+extern struct bwb_variable *fnc_cosecant( int argc, struct bwb_variable *argv, int unique_id );
 
 extern bnumber trnc_int( bnumber x );
 extern int fnc_checkargs( int argc, struct bwb_variable *argv,
diff --git a/bwbasic2.jcl b/bwbasic2.jcl
index aa4d6c2..38a44b3 100644
--- a/bwbasic2.jcl
+++ b/bwbasic2.jcl
@@ -28,7 +28,7 @@
 // SPACE=(6144,(70,70,44)),UNIT=SYSALLDA
 //DD5      DD DSN=&BWBPREF..JCL,DISP=(,CATLG),
 // DCB=(RECFM=FB,LRECL=80,BLKSIZE=6080),
-// SPACE=(6080,(17,17,44)),UNIT=SYSALLDA
+// SPACE=(6080,(60,60,44)),UNIT=SYSALLDA
 //         PEND
 //*
 //S1 EXEC CREATE
diff --git a/bwbasic4.jcl b/bwbasic4.jcl
index 90701a3..01b1227 100644
--- a/bwbasic4.jcl
+++ b/bwbasic4.jcl
@@ -11,8 +11,8 @@
 //INPUT    DD DSN=&BWBPREF..ALLZIPS,DISP=SHR
 //OUTPUT   DD DSN=&&ZIPS,DISP=(OLD,PASS)
 //SYSIN    DD DUMMY
-//SYSPRINT DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
-//SYSTERM  DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
+//SYSPRINT DD SYSOUT=*
+//SYSTERM  DD SYSOUT=*
 //         PEND
 //*
 //UNZIP2   PROC IN=,OUT=,MINPREF='MINIZIP',BWBPREF='BWBASIC'
@@ -21,8 +21,8 @@
 //INPUT    DD DSN=&&ZIPS(&IN),DISP=(OLD,PASS)
 //OUTPUT   DD DSN=&BWBPREF..&OUT,DISP=SHR
 //SYSIN    DD DUMMY
-//SYSPRINT DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
-//SYSTERM  DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
+//SYSPRINT DD SYSOUT=*
+//SYSTERM  DD SYSOUT=*
 //         PEND
 //*
 //S1 EXEC UNZIP1
diff --git a/bwbasic5.jcl b/bwbasic5.jcl
index b71278f..f4e7674 100644
--- a/bwbasic5.jcl
+++ b/bwbasic5.jcl
@@ -16,10 +16,10 @@
 //OUT      DD DSN=&&TEMP1,DISP=(,PASS),UNIT=SYSALLDA,
 //            DCB=(LRECL=80,BLKSIZE=6080,RECFM=FB),
 //            SPACE=(6080,(500,500))
-//SYSPRINT DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
-//SYSTERM  DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
+//SYSPRINT DD SYSOUT=*
+//SYSTERM  DD SYSOUT=*
 //*
-//ASM      EXEC PGM=ASMBLR,
+//ASM      EXEC PGM=ASMA90,
 //            PARM='DECK,NOLIST',
 //            COND=(4,LT,COMP)
 //SYSLIB   DD DSN=SYS1.MACLIB,DISP=SHR
diff --git a/bwbasic7.jcl b/bwbasic7.jcl
index 34fa5d4..0bf7871 100644
--- a/bwbasic7.jcl
+++ b/bwbasic7.jcl
@@ -4,8 +4,8 @@
 //BWBASIC  EXEC PGM=BWBASIC,PARM='DD:INPUT'
 //STEPLIB  DD DSN=&BWBPREF..LINKLIB,DISP=SHR
 //SYSIN    DD DUMMY
-//SYSPRINT DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
-//SYSTERM  DD SYSOUT=*,DCB=(RECFM=F,LRECL=132,BLKSIZE=132)
+//SYSPRINT DD SYSOUT=*
+//SYSTERM  DD SYSOUT=*
 //         PEND
 //*
 //CLEAN    PROC BWBPREF='BWBASIC'
diff --git a/compile.bat b/compile.bat
index deb2e0e..917916b 100644
--- a/compile.bat
+++ b/compile.bat
@@ -21,5 +21,5 @@ call stdcomp bwb_stc.c
 call stdcomp bwx_tty.c
 call stdcomp unixio.c
 
-rem gcc -o bwbasic.exe *.o
+gcc -mno-cygwin -s -o bwbasic.exe *.o
 rem bcc32 -ebwbasic.exe *.obj
diff --git a/stdcomp.bat b/stdcomp.bat
index 514f10a..13c2122 100644
--- a/stdcomp.bat
+++ b/stdcomp.bat
@@ -1,3 +1,3 @@
-rem gcc -w -c -ansi -I . %1 %2 %3 %4 %5 %6 %7 %8 %9
+gcc -w -c -ansi -mno-cygwin -I . %1 %2 %3 %4 %5 %6 %7 %8 %9
 rem bcc32 -w- -A -c -I. %1 %2 %3 %4 %5 %6 %7 %8 %9
-gccmvs -Os -S -ansi -nostdinc -I ../pdos/pdpclib -I . %1 %2 %3 %4 %5 %6 %7 %8 %9
+rem gccmvs -Os -S -ansi -nostdinc -I ../pdos/pdpclib -I . %1 %2 %3 %4 %5 %6 %7 %8 %9
diff --git a/zipcms.bat b/zipcms.bat
index 5bc907f..6ad5530 100644
--- a/zipcms.bat
+++ b/zipcms.bat
@@ -1,2 +1,2 @@
 del all.zip
-zip -0 -X -ll -j all *.c *.h *.exec *.bas *.parm README COPYING
+zip -0 -X -ll -j all *.c *.h *.exec *.bas *.parm README COPYING bwbasic.doc
diff --git a/zipmvs.bat b/zipmvs.bat
index d9b4e12..1508bc5 100644
--- a/zipmvs.bat
+++ b/zipmvs.bat
@@ -5,5 +5,5 @@ del all.zip
 del alljcl.jcl
 zip -9 -X -ll -j bwbsrc.zip *.c
 zip -9 -X -ll -j bwbinc.zip *.h
-zip -9 -X -ll -j bwbjcl.zip *.jcl README COPYING
+zip -9 -X -ll -j bwbjcl.zip *.jcl README COPYING bwbasic.doc
 zip -9 -X all *.zip