# All Questions

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### Get a List plot with hep of module

I just want to get a list plot for my model which I wrote with help of the module. ...
58 views

### Unexpected results from NonlinearModelFit [closed]

I have attempted to exercise a non-linear model fit to my data, dadtAbs, and got the following puzzle ...
17 views

### How does one open/launch UnityLink using Mathematica ver 10 (on Mac)?

I am trying to access UnityLink on Mathematica version 10. When I follow the only found directions, I receive an error that does not inform me on how to resolve the issue. I quote from the notebook: ...
67 views

### I want to solve for X in an equation [closed]

I want to solve for X in the equation ode1 (Meaning to leave it alone, or that all the values are on the other side of the equal sign) but the answer it gives me includes to then graph it X vs L but ...
24 views

### How do I plot two normalized variables with one varying parameter as a 2d plot or a contour plot?

I'm trying to replicate a plot that has both (x,y) normalized variables, I've tried using Evaluate and Contourplot with no success. I have set Rn=20, but it should be another variable. Where Fn=fs/fr, ...
97 views

### Converting a Spherical Polar vector to Cartesian [closed]

I have the vector: $$sin2\theta(cos\phi +\frac 1 2sin\phi)\vec r +2cos2\theta(cos\phi+\frac 1 2sin\phi)\vec \theta +2cos\phi(\frac 1 2cos\phi -sin\phi)\vec \phi$$ in spherical polar coordinates which ...
72 views

I am using Mathematica to develop some interesting" problems for students to solve using Fourier series. The following computation seems as though it should yield a real result: $B_n = \int_0^1 ... 1answer 47 views ### Generating a list of outputs using For[] Loop I have a question regarding the use of the For[] loop to generate a list of outputs from a function that generates random outputs. Essentially, creating a sample of ... 1answer 83 views ### How to simplify Elliptic integrals? Context I would like to show that these 2 functions are identical ... 1answer 26 views ###$MaxPrecision doesn't work

I want to set MaxPrecision low, to like 2 decimals, but after I set it, it stays at 5 regardless. I've tried using two commands: ...
13 views

### Is there any formula to get the IRR from the slope of the Cumulative Cash Flow?

I've simulated a monthly regular cash flow with Excel, and the Internal Rate of Return (IRR) calculated from the first date to the current row. The curve of the IRR is very similar to the Transfer ...
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### Expression simplification

I have this term Sqrt[(B Bc)/(A^2-B Bc)]Sqrt[B Bc+A(-A+Sqrt[A^2-B Bc])]Sqrt[-B Bc+A(A + Sqrt[A^2-B Bc])], which actually can be simplified to B*Bc. However, it ...
39 views

### $\alpha \int_{0}^T \text{Sin}(fi−fk+Δf)∗t) \, dt$ — Why is it not giving wrong answer? [closed]

$$\alpha \int_{0}^T \text{Sin}(fi−fk+Δf)∗t) \, dt$$ I am integrating this in Mathematica, My code is (1/2)*α*Integrate[Sin[2*Pi*(fi - fk + δf)*t], {t, 0, T}] + Ν1 ...
33 views

### Algorithm used by Mathematica for evaluating partial sums

Today, while using mathematica, I entered the command Sum[1/Factorial[n], {n, 0, x}] and found that: \sum_{x\geq n\geq0}\frac{1}{n!}=\frac{e\Gamma(x+1,1)}{\Gamma(...
58 views

### Determining intersection point in mathematica plot

I plotted the function given in the figure with respect to "z" .I obtained different plots for different distinct values of "t". Now please can you help how to obtain the ...