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Results tagged with calculus-and-analysis
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user 8865
Questions related to the calculus and analysis branches of Mathematica, including, but not limited to, limits, derivatives, integrals, series, and residues.
6
votes
2
answers
3k
views
Integral does not converge (when it should) [duplicate]
Bug introduced in 10.0 and fixed in 10.0.2
I was looking at integrals like:
Integrate[HermiteH[50, x]*Exp[-x^2], {x, 0, Infinity}]
which gave me a "does not converge on $(0,\infty)$" error. On t …
- 333
1
vote
1
answer
408
views
Defining arbitrary order derivatives function [duplicate]
I have a function $\phi(t)$ and I want to define a function $\phi D(t,r):=\phi^{(r)}(t)$, in other words evaluate the $r$'th derivative of $\phi$ at $t$. The naive code that I have is:
phiD[t_, r_] = …
- 333
2
votes
Defining arbitrary order derivatives function
In the comments, Artes suggested the Derivative function. This works:
phiD[t_,r_]=Derivative[r][phi][t]
- 333