PROGRAMMING LANGUAGES

# Delphi

## Overview

Delphi grew out of the Turbo Pascal language.

Delphi is one of the languages available for writing scripts in Altium, a PCB design program.

## Code Blocks

Delphi uses begin and end; keywords to create blocks of code (similar to the { and } characters in c).

Note that after the end keyword you must include a semi-colon, but

not after the begin keyword!

## Binary Arithmetic

=  // Equal to
<> // Not equal too


Single line comments are started with // and finish on the start of a new line.

Multi-line comments are started with either { or (* and finished with } or *).

## Rounding

Rounding in Delphi can be done with the in-built function Round(). It rounds a number to the nearest integer. To round to a specified number of decimal places, you can use this function in conjunction with the divide/multiply technique.

Divide the number by the precision you want, use the Round function, and then multiply it again by the precision.

// Rounds a value to 2 decimal places
procedure RoundAValueTo2Dp();
var
unRoundedValue : double;
roundedValue : double;
begin
unRoundedValue := 2.4798;
roundedValue := Round(unRoundedValue/0.01)*0.01;
// roundedValue now equals 2.48
end;