make f(x,y,z)=vector make a vector-valued function

[jasongrout]

Currently this makes a vector over callable symbolic expressions: f(x,y,z)=(x<sup>2,y</sup>2,x*z*y). But this doesn't work: f(x,y,z)=vector([x<sup>2,y</sup>2,x*z*y]). This means that it's painful to do calculations on symbolic vectors and easily make new vector valued functions.

CC: @kcrisman @jvkersch @mforets

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/11507

[burcin]

comment:1

How does this relate to #11180?

[kcrisman]

comment:2

They are related, but different, I think. #11180 is about allow the f in the description to take a vector as an input; this one is about creating a new function using a vector. Best to keep them separate.