The pwr() function raises a value contained in an expression to the power of the value of a second expression.
|num.exp||Value to raise to the power of the value of power.exp.|
|power.exp||Value whose power is applied to the value of num.exp.|
A power.exp of 0 always returns a 1. A num.exp of 0 returns a 0.
As with all functions that require numeric expressions, if any of the arguments evaluate to a nonnumeric value, this run-time warning message displays:
[b16] in program "pgm", line n: Nonnumeric data when numeric required; zero used.
This statement prints a 9, the result of 3 taken to the power of 2.
In this statement, 3^2 is identical to pwr(3,2).
This statement prints the square root of the value stored in the variable xyz. This is equivalent to: print sqrt(xyz)