calc(3)

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NAME

calc - Integer calculator

SYNOPSIS

n calc "string"

DESCRIPTION

calc can perform simple integer based calculations given by "string", where the "string" takes the following form:-

"[b]<s>"

Where 'b' is an optional letter setting the required output base which can be one of the following:

b    - Binary
o    - Octal
d    - Decimal
x    - Hexadecimal

Default when omitted is 'd' (decimal). "s" is the sum to be calculated, which should be bodmas in form. Following is a list of valid symbols.

(..) - Parentheses (contents calculated first)
!    - Logical not
&&   - Logical and
||   - Logical or
==   - Logical equals
!=   - Logical not equals
~    - Bitwise not
&    - Bitwise and
|    - Bitwise or
^    - Bitwise xor
/    - Divide
*    - Multiply
%    - Modulus
+    - Addition
-    - Subtraction
0xNN - Hexadecimal number
0NN  - Octal number
LR   - Last calculation recall

Any MicroEmacs variables can be used in the calculation. The result of the calculation is stored in .calc.result(5). The argument n is a bitwise flag where:

0x01

Print out the result on the message-line.

0x02

Use string comparisons for == and != comparisons. This has the advantage of being able to calc "Foo" == "Bar" etc.

When omitted the default argument is 1.

EXAMPLE

To calculate the number of hours in a year:

calc "365*24"

To then calculate the number of seconds in the year:

calc "LR*60*60"

NOTES