EXPT¶

Returns the result of raising a base to an exponent.

Signature¶

     ┌─────────┐
IN1 ─┤         │
     │  EXPT   ├─ OUT
IN2 ─┤         │
     └─────────┘

FUNCTION EXPT : ANY_REAL
  VAR_INPUT
    IN1 : ANY_REAL;
    IN2 : ANY_NUM;
  END_VAR
END_FUNCTION

The return type matches the type of IN1. EXPT accepts REAL, LREAL for the base and any numeric type for the exponent.

Inputs

Name	Type	Description
`IN1`	`ANY_NUM`	The base.
`IN2`	`ANY_NUM`	The exponent.

Outputs

Name	Type	Description
Return value	`ANY_NUM`	IN1 raised to the power IN2. Same type as IN1.

Returns IN1 raised to the power IN2. EXPT(a, b) computes a^b. For integer types, the exponent must be non-negative. The operator form is **.

Try it

Source

result := EXPT(2, 10);       (* result = 1024 *)
value := 3 ** 4;             (* value = 81, operator form *)