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What does Gosper_term ? To evaluate a hypergeometric sum $$\sum_{n=1}^{N}f(n)$$ where $f(n+1)/f(n)$ is a rational fracti

What does Gosper_term ? To evaluate a hypergeometric sum $$\sum_{n=1}^{N}f(n)$$ where $f(n+1)/f(n)$ is a rational fracti

How can I detect if an integer n modulo q (not necessary a prime number) is a b-power for a given integer b?

Something like Integers(q)(n).is_power(b) that would return:

• true if there exists $k$ such that n=k^b\pmod{q}
• false otherwise.

That's perfect, thanks! I had forgotten how to access pari commands...

Powers in modular arithmetic How can I detect if an integer n modulo q (not necessary a prime number) is a b-power for a

Thank you for your reply. However, I don't see how to change the color with the creation of a single graphical object, w

Improve time to plot a set of points I try to draw clouds of coloured dots. The coordinates of the points are given by a

I have a list of point and use list_point to draw it. Let’s say

L=[[k,sqrt(k)] for k in range (1000)]
list_plot(L)

I'd like to color the points in a continuous way, to remember the order in which they were drawn. Let's say from the black for the first point on the list to the red for the last.

How can I achieve my goal?

Draw a list of continuously colored points I have a list of point and use list_point to draw it. Let’s say L=[[k,sqrt(k