• → Default

All

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All

is an option value for a number of functions indicating to include everything.

In list functions, it indicates all levels of the list.

For example, in Part, All, extracts into a first column vector the first element of each of the list elements:

• • {{1, 3}, {5, 7}}[[All, 1]]

While in Take, All extracts as a column matrix the first element as a list for each of the list elements:

• • Take[{{1, 3}, {5, 7}}, All, {1}]

In Plot, setting the Mesh option to All will show the specific plot points:

• • Plot[x^2, {x, -1, 1}, MaxRecursion->5, Mesh->All]