The pwr() function raises a value contained in an expression to the power of the value of a second expression.
pwr(num.exp, power.exp)
| 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.
print pwr(3,2)
In this statement, 3^2 is identical to pwr(3,2).
print 3^2
This statement prints the square root of the value stored in the variable xyz. This is equivalent to: print sqrt(xyz)
print pwr(xyz,.5)