Opened 3 years ago

Bug in showing the substitution of a variable with a custom "latex_name" in a multivariate polynomial

Reported by: gh-Miguel-OYeah minor notebook N/A

Description

Sage version: SageMath version 8.7, Release Date: 2019-03-23

Minimal reproducible example:

%typeset_mode True
var("k1,k2,k3,k4,a1,b1,c1,d1") # Let's define some parameters
R.<p,q> = SR[] # Variables of the polynomial
poly= (c1*k1)*p*q + (c1*k2 + a1)*p + (c1*k3 + b1)*q + c1*k4 + d1 # Simple bilinear function in p and q
poly.subs(p=var("alpha")) # ---> Shows correct substitution
poly.subs(p=var("gamma",latex_name=r"\color{blue}{\gamma}", domain="real")) # ---> Shows incorrect substitution
# BUT
print(poly.subs(p=var("gamma",latex_name=r"\color{blue}{\gamma}", domain="real"))) # ---> Shows CORRECT substitution


It is a bug while showing the polynomial, but not while substituting because the print() shows the correct result.

Sample_output

comment:1 Changed 3 years ago by embray

As the Sage-8.8 release milestone is pending, we should delete the sage-8.8 milestone for tickets that are not actively being worked on or that still require significant work to move forward. If you feel that this ticket should be included in the next Sage release at the soonest please set its milestone to the next release milestone (sage-8.9).

comment:2 Changed 3 years ago by embray

• Milestone sage-8.8 deleted

As the Sage-8.8 release milestone is pending, we should delete the sage-8.8 milestone for tickets that are not actively being worked on or that still require significant work to move forward. If you feel that this ticket should be included in the next Sage release at the soonest please set its milestone to the next release milestone (sage-8.9).

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