Command: compute

  COMPUTE is a very simple program for evaluating mathematical ex-
  pressions.

Syntax:

  Use common notation used on computers. Powers can be specified
  by "^" operator. These functions are supported:
  SIN
  COS
  SQR
  TAN
  COTAN
  ARCSIN
  ARCCOS
  ARCTAN
  LN
  EXP
  NOT
  You can also use these bit operators: AND, OR, XOR

Options:

  Argument can be given as a program parameter or can be typed inter-
  actively.
  If everything is OK, return code is 0, else it is non-zero:
  1: non valid expression
  2: division by zero
  3: wrong argument for power
  4: floating point number for logical operation
  5: result is too big
  6: result is too small
  7: zero or negative logarithm

Comments:

  COMPUTE can use the language resource strings if ENVIRONMENT VARIABLES
  LANG and NLSPATH are properly set. Otherwise default strings will be
  used.

Examples:

  Create test.bat (to make the errorlevels visible):

  TEST.BAT
  ---------------------------------------------
  @echo off
  compute %1 %2 %3 %4 %5 %6 %7 %8 %9
  for %%e in (0,1,2,3,4,5,6,7,8,9) do if errorlevel %%e set err=%%e
  echo Errorlevel value: %err%
  set err=
  ---------------------------------------------

  Then execute test.bat:

  Example 1:                         Alternative:
  TEST 5+5                           compute 5+5
  10                                 10
  Errorlevel value: 0                (Errorlevel 0 is given but not shown)

  Example 2:
  TEST 5+                            compute 5+
  Error on pos. n. 2                 Error on pos. n. 2
  Errorlevel value: 1                (Errorlevel 1 is given but not shown)

  Example 3:
  TEST 5/0                           etc. etc.
  division by zero
  Errorlevel value: 2

  Example 4:
  TEST 5^11
  48828125
  Errorlevel value: 0

  Example 5:
  TEST 222^999
  too big result in math operation
  errorlevel value: 6

  Example 6:
  TEST 1*2*3*4*5*6+7-8/9
  726.111
  errorlevel value: 0

Command: compute

Syntax:

Options:

Comments:

Examples:

See also: