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I0e

Solve a system of linear equations with complex coefficients.
 
Loading        LOADSUB ALL FROM "BESMC.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                REAL X,Y
Y=FNI0e(X)
 
Description                
FNI0e returns the value of the modified cylindrical Bessel function of the first kind and order zero of x scaled by e-|x|, e-|x|I0(x). The scaling is done so that the value of I0(x) can be evaluated for arguments of large absolute value, where the value of I0(x) may be larger than MAXREAL, the largest value representable. The value of e-|x|I0(x) is moderate for arguments of large absolute value.
 
Errors                
FNI0e causes an HTBasic error if its argument is not of type REAL.
 
See Also
I0, I1e, In
 
e-|x|I0(x)