F_exp
Probability density for exponential distribution.
 
Loading        LOADSUB ALL FROM "EXP.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                REAL X,A,Y
Y=FNF_exp(A,X)
 
Description                
FNF_exp returns the value of the probability density function of the exponential probability distribution with parameter a at x, f(x;a). F(x;a) is defined by the expression
 
F(x;a) is defined for positive values of a.
 
Errors                
FNF_exp causes an HTBasic error if its arguments are not all of type REAL or if a is negative or zero.
 
f(x;a)
See Also
P_exp, Q_exp