Category : C Source Code
Archive   : CEPHES22.ZIP
Filename : BTDTR.C

 
Output of file : BTDTR.C contained in archive : CEPHES22.ZIP

/* btdtr.c
*
* Beta distribution
*
*
*
* SYNOPSIS:
*
* double a, b, x, y, btdtr();
*
* y = btdtr( a, b, x );
*
*
*
* DESCRIPTION:
*
* Returns the area from zero to x under the beta density
* function:
*
*
* x
* - -
* | (a+b) | | a-1 b-1
* P(x) = ---------- | t (1-t) dt
* - - | |
* | (a) | (b) -
* 0
*
*
* This function is identical to the incomplete beta
* integral function incbet(a, b, x).
*
* The complemented function is
*
* 1 - P(1-x) = incbet( b, a, x );
*
*
* ACCURACY:
*
* See incbet.c.
*
*/

/* btdtr() */


/*
Cephes Math Library Release 2.0: April, 1987
Copyright 1984, 1987 by Stephen L. Moshier
Direct inquiries to 30 Frost Street, Cambridge, MA 02140
*/


double btdtr( a, b, x )
double a, b, x;
{
double incbet();

return( incbet( a, b, x ) );
}


  3 Responses to “Category : C Source Code
Archive   : CEPHES22.ZIP
Filename : BTDTR.C

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