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Diff for /src/usr.bin/dc/dc.1 between version 1.7 and 1.8

version 1.7, 2003/10/11 18:31:19 version 1.8, 2003/10/18 19:47:10
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 of scales of the operands.  of scales of the operands.
 For division the scale of the result is defined  For division the scale of the result is defined
 by the scale set by the  by the scale set by the
 .Ar k  .Ic k
 operation.  operation.
 For multiplication, the scale is defined by the expression  For multiplication, the scale is defined by the expression
 .Sy min(a+b,max(a,b,scale)) ,  .Sy min(a+b,max(a,b,scale)) ,
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 are the scales of the operands, and  are the scales of the operands, and
 .Sy scale  .Sy scale
 is the scale defined by the  is the scale defined by the
 .Ar k  .Ic k
 operation.  operation.
 For exponentation with a non-negative exponent, the scale of the result is  For exponentation with a non-negative exponent, the scale of the result is
 .Sy min(a*b,max(scale,a)) ,  .Sy min(a*b,max(scale,a)) ,
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 of the exponent.  of the exponent.
 If the exponent is negative, the scale of the result is the scale  If the exponent is negative, the scale of the result is the scale
 defined by the  defined by the
 .Ar k  .Ic k
 operation.  operation.
 .Pp  .Pp
 In the case of the division and modulus operator (~),  In the case of the division and modulus operator (~),
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 .Ar x  .Ar x
 may be any character, including space, tab or any other special character.  may be any character, including space, tab or any other special character.
 If the  If the
 .Ar s  .Ic s
 is capitalized,  is capitalized,
 .Ar x  .Ar x
 is treated as a stack and the value is pushed on it.  is treated as a stack and the value is pushed on it.
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 If executing a string, the recursion level is  If executing a string, the recursion level is
 popped by two.  popped by two.
 If  If
 .Ar q  .Ic q
 is capitalized,  is capitalized,
 the top value on the stack is popped and the string execution level is popped  the top value on the stack is popped and the string execution level is popped
 by that value.  by that value.
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 is written in an array that is later popped, to reveal the array that  is written in an array that is later popped, to reveal the array that
 stored  stored
 .Ql first .  .Ql first .
   .It Ic J
   Pop the top value of the stack. The recursion level is popped by that value,
   and following that, the input is skipped until the first occurence of
   the
   .Ic M
   operator.
   .It Ic M
   Mark used by the
   .Ic J
   operator.
   The
   .Ic J
   and
   .Ic M
   operators are non-portable extensions, used by the
   .Xr bc 1
   command.
 .El  .El
 .Sh EXAMPLES  .Sh EXAMPLES
 An example which prints the first ten values of  An example which prints the first ten values of
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 .Ed  .Ed
 .Pp  .Pp
 will terminate because of a too deep recursion level.  will terminate because of a too deep recursion level.
   .It J command argument exceeded string execution depth
   for trying to pop the recursion level more than the current
   recursion level.
   .It mark not found
   for a failed scan for an occurence of the
   .Ic M
   operator.
 .El  .El
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr bc 1  .Xr bc 1
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Removed from v.1.7  
changed lines
  Added in v.1.8