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why does sm tell me im dividing by zero when i divde by a vector?

Submitted by P-rice on Tue, 12/16/2008 - 16:07

Hi

I am a new user to sm and I am trying to do a calculation in sm in the hopes to plot the result. Whenever I try to use the divde comand I get a divide by zero which means nothing to me becasue the all the entries in the vector I am dividing by are non zero, any advise on what I am doing wrong would be great

thanks

below is my macro and after is the error

wdwarf

#formula to read in data and run through de/dt

data wdlist.dat

read { rf 2 vr 16 vt 17 }

data density.dat

read { r 1 d 4 m 5 }

SET vm=SQRT(vr*vr+vt*vt)

spline r d rf df

spline r m rf mf

SET dE = df*erf(vm)/vm-2*vm*EXP(-vm*vm)/(SQRT(PI))

sort {rf vr vt vm df dE}

cumulate dE dEC

Attempt to divide by zero at "-" in macro wdwarf
SNARK / vm -

‹ SM exit when using label in LaTex format (Mac OS X) How do I assign to my data files a circle of radius R? ›

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