Timeline for Can a pure function be constructed whose argument list is a matrix?
Current License: CC BY-SA 4.0
4 events
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| Oct 13, 2022 at 21:18 | comment | added | userrandrand | Nice, thank you. | |
| Oct 13, 2022 at 13:53 | comment | added | Sjoerd Smit |
@userrandrand It is if you want to make sure it does what you want. The pattern {x1_, y1_} also matches a matrix with 2 rows MatchQ[{{a1, a2}, {b1, b2}}, {x1_, y1_}]. You should always be careful with overlapping patterns like that. If you know exactly what kinds of input you can expect, you can usually do without these tests, but otherwise its best to be defensive.
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| Oct 13, 2022 at 11:42 | comment | added | userrandrand |
Is the VectorQ and MatrixQ required in that case ? Would the structure fun[{x1_, y1_}] := x1; fun[{{x1_, y1_}, {x2_, y2_}}] := x2 have the same behavior?
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| Oct 13, 2022 at 8:25 | history | answered | Sjoerd Smit | CC BY-SA 4.0 |