blob: cc4f478f52088ebd4f4f4a929439c1548bd4f8d5 [file] [log] [blame]
extern float A[], B[];
extern float MAXNUMF;
float chbevlf(float, float *, int);
float expf(float), i1f(float), logf(float), sqrtf(float);
float k1f(float xx)
{
float x, y;
x = xx;
if( x <= 2.0 )
{
y = x * x - 2.0;
y = logf( 0.5f * x ) * i1f(x) + chbevlf( y, A, 7 ) / x;
return( y );
}
return( expf(-x) * chbevlf( (float)(8.0/x - 2.0), B, 10 ) / sqrtf(x) );
}