SolveAlways set

Asked May 06 '20 at 11:16

Active May 06 '20 at 11:20

Viewed 43 times

I have a SolveAlways command:

SolveAlways[x==1,y]

(This is a minimal solution, the acutal one is a lot harder)

The output is

{{x->1}}

With that, I want to set x=1. (This, being a minimal example, has only one solution x, but in my harder example I have 5; and I don't want to keep typing out x1=1,x2=2,x3=3 every time the solution changes.

How to?

Thanks

edited May 06 '20 at 11:20

J. M.'s missing motivation

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asked May 06 '20 at 11:16

acenturyanabit

P.S. I'm a 4-hour-freshling to mathematica, but am otherwise proficient in matlab and js – acenturyanabit May 06 '20 at 11:17
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Usually, it's a good idea to use separate variables for your equation solving and for assignment, in case you make mistakes. So if you have a result like res = {{x -> 1}, {x -> 2}}, then you could do something like xsol = x /. res. – J. M.'s missing motivation May 06 '20 at 11:19
I'll give that a try. Thanks! – acenturyanabit May 06 '20 at 11:20
It worked! Thank you! and thanks for the tip about best practice, turns out it was pretty useful too – acenturyanabit May 06 '20 at 11:22
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And then you can access the particular values using Part, e.g. xsol[[1]] will be 1 etc. – corey979 May 06 '20 at 11:22
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Related: https://mathematica.stackexchange.com/a/18706/4999 – Michael E2 May 06 '20 at 12:04

SolveAlways set

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