alejandrito20 Posted November 15, 2009 Posted November 15, 2009 Hello. In maple: the signum function is signum(x)=x/|x| the derivate is d/dx {signum(x)}=signum(1,x) what is: signum(1,1,0) signum(1,x,0) signum(0,x,0) ????
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