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### What are the most common pitfalls awaiting new users?

As you may already know, Mathematica is a wonderful piece of software. However, it has a few characteristics that tend to confuse new (and sometimes not-so-new) users. That can be clearly seen from ...
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### How to Set parts of indexed lists?

I would like to assign a list to an indexed variable and then change it using Part and Set like this: ...
558 views

### Defining indefinitely many functions

Is it possible to define a class of indefinitely many functions f1, f2, f3, ... such that <...
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### Fittting data with combination of an unknown number of Gaussians

I have data that I want to fit with a constant plus a combination of Gaussians, with their actual number being one parameter of the fit (besides the average and the variance of every one of them). ...
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### How to define constants in Mathematica like c1,c2,c3,...cn?

Manually defining the constants is tedious if the 'n' is large. how to do this?
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### I want to plot a list of points with specified t and x[t] coordinates [closed]

I have this code: ...
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### Is it possible to define several variables at once?

Is it possible, to have several variables defined in a manner similar to vars={x1, x2, x3, x4, x5, x6, x7, x8, x9, x10} and then use an expression like eg. ...
187 views

### Separating an equation into multiple equations based on coefficients

So this is similar to this. Suppose I have an equation $ax^2-bx+3a-c-2x^2+7cx+x^2=0$ I can group the terms in mathematica using ...
I am new to Mathematica and I am trying to create the electric field $F$ from the electric potential $V$ (using arbitrary distances) and then plot the subsequent vector graph to show that the electric ...