torito_verdejo's profile - activity

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2019-05-23 19:00:55 +0200	commented answer	How to use `solve()` for a system of equations using matrices? Actually I don't understand how this actually works. `Ax` returns a list, as `map()` does, but `Ax` won't work while you're construction does. Why?
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2019-05-23 11:40:19 +0200	asked a question	How to use `solve()` for a system of equations using matrices? I know I can solve a system of equations by inputing independently each equation in a same `solve()` expression using the syntax `solve([[exp1],[exp2], ... [expn]], x1,x2, ... xn)`, but what should I do if, having defined a matrix `A` and two columns vectors `x` and `y`, I want to express the system of equations as `Ax == y`? Each instance of `A[i] x` returns a list, that is (of course) not treated as a valid argument for an equation in `solve()`. How could I "tranform" that list in order to use it with `solve()`?