How can you write sgn[Im(z)] in fortran?

nnnnn · Oct 25, 2009

How can you write "sgn[Im(z)]" in fortran?

Hello everybody;

How can you write "sgn[Im(z)]" in fortran? , then what do

you need to add in the header?

also what does "sign(a,b)" mean?

Much Thanks in advance

silverfrost · Oct 26, 2009

http://publib.boulder.ibm.com/infoc...jsp?topic=/com.ibm.xlf101l.doc/xlflr/sign.htm

minger · Oct 26, 2009

I'm not sure how your compiler will handle SIGN with complex numbers. It may be useful for you to keep track of the real/imaginary components separately in different variables rather than using a single COMPLEX variable.

If it does work with complex numbers though, then great.

How can you write sgn[Im(z)] in fortran?

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