Uneori precizia de calcul oferita de tipurile de date reale nu e suficienta. Atunci aplicatia de mai jos este binevenita.
Sometimes the precision of computation given by real data types is not enough. Then the following application is useful.
PHP Application (adapted from an original FreePascal source code):
Calculeaza probabilitatea (P) asociata unei valori t din distributia Student.
Compute the probability (P) associated with t value from Student's distribution.
P[(x≤-t),df] = P[(x≥t),df] = P[(x≤-t)U(X≥t),df]/2