# Revision history [back]

### Interactive question in notebooks

When trying to find some solution to the double integral problem and poking around with Sage (4.7.2), I stumbled upon this behavior:

x,y,u,v,p,k=var('x,y,u,v,p,k')
integrate(x+y^k, y)


output (resembles maxima interaction):

Traceback (click to the left of this block for traceback)
...
Is  k+1  zero or nonzero?


How can I answer to this (with nonzero)?

### Interactive question in notebooks

When trying to find some solution to the double integral problem and poking around with Sage (4.7.2), I stumbled upon this behavior:

x,y,u,v,p,k=var('x,y,u,v,p,k')
integrate(x+y^k, y)


output (resembles maxima interaction):

Traceback (click to the left of this block for traceback)
...
Is  k+1  zero or nonzero?


How can I answer to this (with nonzero)?

Update: I accept @god.one solution below as there seems no way as for now to interactively answer those maxima questions.

### Interactive question in notebooks

When trying to find some solution to the double integral problem and poking around with Sage (4.7.2), I stumbled upon this behavior:

x,y,u,v,p,k=var('x,y,u,v,p,k')
integrate(x+y^k, y)


output (resembles maxima interaction):

Traceback (click to the left of this block for traceback)
...
Is  k+1  zero or nonzero?


How can I answer to this (with nonzero)?

Update: Update: I accept @god.one solution below as there seems no way as for now to interactively answer those maxima questions.