Does this function have a derivative? $$f_p(x)=\sum_{k=1}^{\lfloor \frac{p}{4qx}+\frac{1}{2}\rfloor}x^2csc^{2}\left(j_kx\right) $$ How do I derive this function?
Floor function, derivates, summation
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real-analysis
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0What do all of the variables mean? – 2017-01-13
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0j,p,q are arbitrary constants – 2017-01-13
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0Do you know the derivative of $x^2\csc(x)$? If so, it seems you should be able to take this derivative – 2017-01-13
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0I know calculate the derivative of $\displaystyle x^2csc^2(x)$, but the problem is the floor function, i don't know what a can make with this function. – 2017-01-13