PWR (Power - Exponentiation on a Variable)

The PWR function performs an exponentiation (raise to the power) on a variable and returns a value of type Float.

Syntax

PWR (X, Y)

The following example program uses the PWR function to apply an exponent to a variable with a value of 10. The result is stored in the variable Expon. A For/To loop is used to set Y to 1, 2, 3..25 to demonstrate the effects of the exponent on the base. Collect the Table from the datalogger and view it in a text editor to see the results.

Public X, Y, Expon

DataTable (Table,True,-1)
  Sample (1,X,IEEE4)
  Sample (1,Y,IEEE4)
  Sample (1,Expon,IEEE4)
EndTable

BeginProg
  X=10
  Scan (1,Sec,3,1)
    For Y = 1 to 25
      Expon=PWR(X,Y)
      CallTable (Table)
    Next Y
  NextScan
EndProg

Remarks

The PWR function applies the exponent Y to the base X (). This function can be used in an expression or as the source for a variable (for example, Result = PWR(X,Y).