Sqrt

Calculate the square root of a value

Declaration

Source position: mathh.inc line 108

  function Sqrt(d: ValReal) : ValReal;

Description

Sqrt returns the square root of its argument X, which must be positive.

Errors

If X is negative, then a run-time error is generated.

See also

Name Description
Exp Exponentiate
Ln Calculate logarithm
Sqr Calculate the square of a value.

Example

Program Example66;
{ Program to demonstrate the Sqrt function. }
begin
  Writeln (Sqrt(4):0:3); { Prints 2.000 }
  Writeln (Sqrt(2):0:3); { Prints 1.414 }
end.