solve returns variable name instead of value

When running the solve() command, no matter how complex or simple, it will return the variable name instead of its value.

Answer 1

[Frederik Jensen]

Solved it by uninstalling the Maple toolbox, i had the two accounts connected and it somehow caused trouble.

It can be unsinstalled through the "Programs and Features" menu in the Control Panel.

Answer 2

[Rik]

This is exactly as documented.

syms x
result=solve(4 == 2+x,x)

result = 

2

res=double(result) %convert symbolic to double

res = 2

[Frederik Jensen]

This just gives me an error:

[Frederik Jensen]

To ellaborate; The result variable contains the value "x", it is not the value 2 as you're getting. I'm fearing i may have change a setting somewhere, somehow.

[Rik]

Which release are you using?

[Star Strider]

What MATLAB version/release are you using? I believe the last Maple engine for the Symbolic Math Toolbox was 2009. Alternatively, if you have Maple installed on your computer, there could be conflicts with the MATLAB Symbolic Math Toolbox.

[Frederik Jensen]

My version is:

MATLAB Version: 9.8.0.1396136 (R2020a) Update 3

I do have Maple installed

[Rik]

I don't have a license for the symbolic toolbox or Maple, so I can't reproduce your system. I can only run code from the symbolic toolbox in Answers.

[Frederik Jensen]

Solved it by uninstalling the Maple toolbox, i had the two accounts connected and it somehow caused trouble.