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HelloWorld.pas
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HelloWorld.pas
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program HelloWorld;
{ by Ray Arias, 03 September 2022
version 1.00.00-delta(rc)-Bon
Jour/Pascal N-IDE 4.3.2
semantic version 1.0.0-rc
}
var
a, b, c, a2, b2, c2: Real;
i : Integer;
const
hello = 'Hello, World';
title = 'Pathagorean Theorem';
formula1 = 'a² + b² = c²';
formula2 = 'c = ±√(a² + b²)';
endmsg = 'End of Program HelloWorld.';
contmsg = 'Press ENTER to continue.';
function oneLess(i : Integer) : Integer;
begin
Write(i);
if i > 0 then
begin
Write(', ');
oneless := i - 1;
oneLess(oneLess);
end;
end;
function square(x : Real) : Real ;
begin
square := x * x;
end;
function pathagorean(a, b : Real) : Real;
var
a2, b2, c2, c : Real;
begin
a2 := square(a);
b2 := square(b);
c2 := a2 + b2;
c := Sqrt(c2);
pathagorean := c;
end;
uses Crt;
begin
WriteLn('Program HelloWorld version 1.00.00-delta');
WriteLn('(rc)-Bon Jour/Pascal N-IDE 4.3.2');
WriteLn('By Ray Arias, 03 September 2022');
WriteLn();
WriteLn(contmsg);
ReadLn();
clrscr();
WriteLn(hello);
WriteLn();
Write('Iteration Test: ');
for i := 0 to 9 do
begin
Write(i);
if i < 9 then Write(', ');
end;
WriteLn();
WriteLn();
Write('Recursion Test: ');
oneLess(9);
WriteLn();
WriteLn();
WriteLn(contmsg);
ReadLn();
clrscr();
WriteLn(title);
WriteLn(formula1);
WriteLn(formula2);
WriteLn();
Write('Enter a: ');
ReadLn(a);
Write('Enter b: ');
ReadLn(b);
WriteLn();
a2 := square(a);
b2 := square(b);
c2 := a2 + b2;
c := pathagorean(a, b);
WriteLn('c = ±√((' + a + ')² + (' + b + ')²)');
WriteLn('c = ±√((' + a2 + ') + (' + b2 + '))');
WriteLn('c = ±√(' + c2 + ')');
WriteLn('c = ±', c);
WriteLn();
WriteLn(endmsg);
WriteLn(contmsg);
ReadLn();
end.