SQRT¶

Returns the square root of a numeric input.

Signature¶

    ┌─────────┐
IN ─┤  SQRT   ├─ OUT
    └─────────┘

FUNCTION SQRT : ANY_REAL
  VAR_INPUT
    IN : ANY_REAL;
  END_VAR
END_FUNCTION

The return type matches the input type. SQRT accepts REAL, LREAL.

Inputs

Name	Type	Description
`IN`	`ANY_REAL`	The non-negative value to compute the square root of.

Outputs

Name	Type	Description
Return value	`ANY_REAL`	The square root of IN. Same type as IN.

Returns the square root of IN. The input must be non-negative; the result of SQRT applied to a negative value is undefined.

Try it

Source

result := SQRT(REAL#9.0);    (* result = 3.0 *)
value := SQRT(LREAL#2.0);   (* value = 1.41421356... *)