Tagged Questions
6
votes
1answer
63 views
10
votes
1answer
219 views
Why can't I change the value of MaxRecursion in NIntegrate when integrating BesselJ?
I am trying to evaluate this integral numerically
$$
\int_0^{\infty } J_0(q R) \tanh(q) \, \mathrm{d}q
$$
for large values of $R$. This makes the integrand oscillate more quickly and Mathematica ...
8
votes
2answers
134 views
Problem with NIntegrate when WorkingPrecision is specified
I am trying to evaluate this integral numerically:
$$
\int_0^{\infty } m \exp (-m) J_1(m){}^2 \, dm
$$
Everything is OK when only the integration method is specified:
...
0
votes
0answers
189 views
Mathematica 9's NDSolve treats sum as an integral [closed]
Sum and integral are threated the same by NDSolve in Mathematica 9:
The problem was also in Mathematica 7. I submitted a bugreport to the technical support, they admitted this is a bug, fixed it in ...
14
votes
1answer
214 views
Why does LogLinearPlot sample its argument outside the specified domain?
I experience a weird bug in the function LogLinearPlot. If the input is an interpolation function, such as the one created like this,
...
15
votes
2answers
618 views
Why does Mathematica give the wrong answer when integrating?
I integrate
Integrate[Exp[I Cos[b - c]] Cos[b], {b, 0, 2 Pi}]
Mathematica gives:
2 I Pi BesselJ[1, 1]
Which is indepedent ...
