I need to make a picture that should look like I saw a similar question here but the red function line appears neither when I use --shell-escape nor when I use --enable-write18. I use TeXstudio, by ...
Is it possible to create the following diagram in LaTeX ? I am interested in the main body, any colour inside the box is fine.
I want to plot the solution of two inequalities and include them in a LaTeX paper. I really like they way this looks: Wolfram Alpha. Unfortunately, I have no idea how to export this into a ...