# Questions tagged [list-manipulation]

Questions on the manipulation of List objects in Mathematica, and the functions used for these manipulations.

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### calculate differences of a list using slots

I want to calculate the differences between the numbers of a list. One way to do that is using 'Differences'. For example: L = {1, 3, 6, 9}; Differences[L] this ...
129 views

### Integrate function returns vector instead of scalar

When I try to integrate a function mapping a vector to a scalar Mathematica "ignores" the function and returns a vector independent of the function. Here is a minimal example of my problem: ...
61 views

### Return the factors of a partially-factored polynomial, without factoring

Suppose I have an integer polynomial f that is in a factored form, say f = (1 + x) * (2 + x + x^3) * (2 + x^5). I want a ...
121 views

### How to filter table from some rows without flattening it?

Consider the following table: a1[x_] = If[x < 1.1, 3, Pi/2] tabb = ParallelTable[{x, y, z, a1[x]}, {x, 1, 2, 0.1}, {y, 0.5, 1, 0.1}, {z, 1, 3, 1}] Here, a1[...