| |
Arithmetic Functions
-
- atan2(Y,X)
- Returns the arctangent of Y/X in the
range -PI to PI.
- cos(EXPR)
- cos EXPR
- Returns the cosine of EXPR (expressed
in radians). If EXPR is omitted takes cosine of $_.
- exp(EXPR)
- exp EXPR
- Returns e to the power of EXPR.
If EXPR is omitted, gives exp($_).
- int(EXPR)
- int EXPR
- Returns the integer portion of EXPR.
If EXPR is omitted, uses $_.
- log(EXPR)
- log EXPR
- Returns logarithm (base e) of
EXPR. If EXPR is omitted, returns log of $_.
- rand(EXPR)
- rand EXPR
- rand
- Returns a random fractional number
between 0 and the value of EXPR. (EXPR should be positive.)
If EXPR is omitted, returns a value between 0 and 1. See
also srand().
- sin(EXPR)
- sin EXPR
- Returns the sine of EXPR (expressed in
radians). If EXPR is omitted, returns sine of $_.
- sqrt(EXPR)
- sqrt EXPR
- Return the square root of EXPR. If
EXPR is omitted, returns square root of $_.
- srand(EXPR)
- srand EXPR
- Sets the random number seed for the rand
operator. If EXPR is omitted, does srand(time).
|
|
|
