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Si
Sine integral.
 
Loading        LOADSUB ALL FROM "EI.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                        REAL X,Y
Y=FNSi(X)
 
Description                
FNSi returns the value of the sine integral of x, Si(x). Si(x) is defined by the relation
Si(x) is defined for all values of x.
 
Si(x)
Errors                Si causes an HTBasic error if its argument is not of type REAL.
 
See Also
Ei, Ci, Shi