Tag for questions about using optional arguments in Mathematica functions.

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0
votes
1answer
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How to make an index optional?

Can I define a relation between variables, such that the expression will also be evaluated (then assuming all indices are equal) when no index is given? $$ x_i + y_j = \delta_{ij} ...
2
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0answers
86 views

How can this function's options be used in different places?

I wrote this function to make a ListPlot where the points are colored by a third argument. ...