# All Questions

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### Is it the correct syntax with TransformedDistribution?

I define a function as f[x_] := ...;which is in fact the PDF of a random variable $X$. The PDF if given by $f_X(x)$. Let $Y$ is a random variable, which is the ...
57 views

### MMA gives error when a different PDF expression is used for the same distribution

I have the following MMA code. Note that the function I declared at the very beginning is the PDF of square of a Nakagami Distributed random variable. With $m=1$ and $P=1$, $f(h)$ becomes Exponential ...
159 views

### Can Mathematica solve this integral numerically?

The PDF of $H$ is given by $f_H(h)=\frac{K+1}{\tau}\exp\left(-K-(K+1)h/\tau\right)I_0\left(\sqrt{4K(K+1)h/\tau}\right)$ Here $I_0$ is the 0-th order Bessel function of first kind
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### Solving equations with change of variables is not working?

I want to express it in the form $$\text{expr=}\int_{-\infty}^{\infty}C_1\exp\left(-t^2\right)f(t)dt$$, i.e., the integrand is a bounded smooth function $f(t)$ times $\exp(-t^2)$ and the domain of ...
125 views

### Why MMA is not able to solve this problem?

I am running these following code in Mathematica. But, MMA does not output anything. It is giving me an message as "The integrand .... has evaluated to non-numerical values for all sampling points in ...
143 views

### How can I evaluate a certain probability density function?

The PDF of a random variable $X$ is given by Note that $H(t)$ is also a function of $x$. Here $-\infty<\mu<\infty$, $\lambda>=0$ and $m>=1/2$ Let $I$ be a function of random variable $Y$....
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### How to create assignments to Overvector Programmatically

I wish to write a function that accepts to lists. One is a list of list, holding the components of a several vectors. Ex.: comp = {{a,b}, {c,d}}. The second list ...
2k views

### Changing color of an object in an image

Consider the following image: How can I change all red colors in this image into (for example) blue.
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### Web Browsing Automation: how to expand all comments under a blog post?

I wish to expand all the comments under a LiveJournal post for the purposes of saving the complete thread of comments. According to LiveJournal's FAQ when a post gets more than 50 comments they are ...
22 views

### Setting up teams to play in games

Imagine there are 12 teams, numbered 1 through 12. There are 10 games those teams can compete in, with two teams needed per game. There are 10 rounds, and it is important that after the 10 rounds are ...
47 views

### How do you manipulate this in 2D

Use Manipulate to create an interactive plot that shows the parametrically-defined curve described by {x[t], y[t]} = {t Sin[t], t^2/15} for ...
16 views

### Weird SeriesData behavior?

I was trying to calculate the determinant of a matrix whose elements are truncated series. As a result I obtained an expression like this: ...
384 views

### Create new notebook at fixed size

Using Ctrl+n we are effectively doing FrontEndTokenExecute["New"] and, at least on Windows, a new window has a WindowSize equal ...
27 views

### How to make the conjugate transpose

I have a problem to make the conjugate and transpose the matrix.May anyone help me please. ...
74 views

### Memory leak with NDSolve

This is not the first time the question in mentionned (cf in particular this recent question NDsolve memory leak), but there seems to be a serious issue of memory leak - or am I missing something? ...
50 views