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0
votes
3answers
176 views

Mathematica plotting help (plotting a complex fourier series). [duplicate]

How would I plot the following in Mathematica? $ \displaystyle\sum_{n=2}^{10} \bigg(\dfrac {4ine^{inx}(-1)^n}{(n^2 - 1)^2} - \dfrac{4in e^{-inx}(-1)^n}{(n^2 - 1)^2} \bigg) $ Thanks.
0
votes
0answers
32 views

Differential equation [duplicate]

Why mathematica not solve this equation: In: DSolve[{z''[t]==(z'[t])^2+(z[t])^2-Sin[t]-1, z[0]=0,z[Pi/2]=1},z[t],t] Out: DSolve[{z''[t]==(z'[t])^2+(z[t])^2-Sin[t]-1, z[0]=0,z[Pi/2]=1},z[t],t] ...
0
votes
0answers
45 views

Is there a way to add arrows along a parametric curve inside a manipulate function (Mathematica)? [duplicate]

I cannot find a way to add arrows along a parametric curve that I used NDSolve to get. I have written everything inside Manipulate. ...
1
vote
2answers
83 views
0
votes
0answers
52 views

Mathematica: How to apply a function to a list of tuples [duplicate]

trialList = {{0, 24.701}, {1, 24.69}, {2, 24.733}}; f[x_] = x + 1 I would like to apply the function f(x) to only the second element of each tuple. How is this ...
15
votes
1answer
242 views

Is there an issue tracker for already reported Mathematica bugs?

Since I'm working at least 50% on Linux which is probably the operating system which gets not so much attention from Wolfram, I find new bugs regularly. What bothers me the most is, that tracking a ...
1
vote
1answer
231 views

TimeConstrained[] not taking full amount of time

I am using Mathematica to evaluate an integral within a given time constraint. Note that I have read in values of 'BigList' or BL from a file. If the file has a ...