Strange result when trying to use sagetex

Question

As a result of another question I'm trying to use Sagetex. I performed the install as directed, and even got the compile to succeed, insofar as there are no fatal errors, but it appears that sagetex isn't actually parsing anything in sage like it should.

\begin{sagesilent}
var("x") #test
Integer(randint(1,4))
a = Integer(randint(2,7))*x+Integer(randint(2,7))
b = Integer(randint(2,7))*x+Integer(randint(2,7))
\end{sagesilent}

This is a test
$(\sage{a})(\sage{b}) = \sage{expand(a*b)}$

Compiles into

This is a test
(??)(??)=??

So it seems like the variable x, and the "a" and "b" are not actually staying defined (or maybe not being defined in the first place).

In contrast, the exact same code in sagecloud defines 2 binomials perfectly fine, then expands them like it should.

The only error I get from latex is "LaTeX Warning: Reference `@sageinline0' on page 1 undefined on input line 120." about 3 times.

For what it's worth I'm using Texmaker as my editor.

Answer 1

Unless you have an IDE programmed to compile the document with 1 click, it's a 3 step process: Step 1: Process your file with LaTeX. This produces a .sage file Step 2: Compile the .sage file using Sage. That means getting the terminal open for Sage. Make sure you've changed to that directory (cd). Type load("MyFile.sagetex.sage") and press return. This performs the calculations and creates more files (eg .sout) Step 3: process the .tex file with LaTeX

If you've done this and things still aren't working, it could be that Sage and LaTeX aren't talking to each other. See this page for more information.