SQR (Square Root)

The SQR function returns the square root of a number.

Syntax

SQR ( number )

The example uses SQR to calculate the square root of Vin on differential terminal 1.

'Apply AC or DC voltage to Diff CH1
'If Vin goes negative, the Root values will go to zero

Public root, Vin          'Declare variables

DataTable (SQRoots,1,1000)  'Store average Vin and square root values in table
  DataInterval (0,1,sec,10)
  Average (1,Vin,FP2,0)
  Average (1,root,FP2,0)
EndTable

BeginProg
  Scan(1,Sec,1,0) 'Scan rate 1 second
    VoltDiff(Vin,1,mv2500,1,1,0,4000,1,0)
    CDM_VoltDiff(VOLT116,CPI_BusA + 1,Vin,1,mv2500,1,1,0,4000,1,0)
    If Vin < 0 Then
    root = 0     'Avoid trying to take square root of neg number, set = 0.
    Else
    root = SQR(Vin)
    EndIf
    CallTable SQRoots
  Nextscan
EndProg

Remarks

This function calculates the square root of the value specified by the Number argument. The Number argument can be any valid numeric expression that results in a value greater than or equal to 0.