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Sum function

In unit Math

Return sum of values.

Declaration

pascal
function Sum(const data: Array of Single): Float

Description

Sum returns the sum of the values in the data array.

The second form of the function accepts a pointer to an array of N values.

Errors

None.

See also

Example: ex44

pascal
Program Example44;

{ Program to demonstrate the Sum function. }
{ @ should return typed pointer }
{$T+}

Uses math;

Var
  I : 1..100;
  ExArray : Array[1..100] of Float;

begin
  Randomize;
  for I:=low(ExArray) to high(ExArray) do
    ExArray[i]:=(Random-Random)*100;
  Writeln('Max     : ',MaxValue(ExArray):8:4);
  Writeln('Min     : ',MinValue(ExArray):8:4);
  Writeln('Sum     : ',Sum(ExArray):8:4);
  Writeln('Sum (b) : ',Sum(@ExArray[1],100):8:4);
end.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.