aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data update

Browse source
This commit is contained in:
Ingy döt Net 2024-10-16 18:07:41 -07:00
parent 81fd053722
commit 52a6ef48dd
10248 changed files with 63654 additions and 6775 deletions
Download patch file Download diff file Expand all files Collapse all files

16
Task/Random-numbers/PascalABC.NET/random-numbers.pas Normal file
View file

@ -0,0 +1,16 @@
const
n = 1000;
function randnormal(n: integer; mean, sd: real): array of real;
begin
var uniform1 := ArrRandomReal(n, 0, 1, 10);
var uniform2 := ArrRandomReal(n, 0, 1, 10);
result := uniform1.Zip(uniform2, (x, y) -> Cos(2 * PI * x) * Sqrt(-2 * Ln(y)) * sd + mean).ToArray;
end;
begin
var numbers := randnormal(n, 1, 0.5);
var mean := numbers.Average;
var std := numbers.Sum(x -> Sqr(x - mean) / n).Sqrt;
println('mean:', mean, 'stddev:', std);
end.