my Latex and Tex4ht cheat sheet

This generates the Latex file p.tex
\documentclass[12pt,titlepage]{article}
\begin{document}
It is known that $\sin(0)=0$
\end{document}
Using Python
import math
s=r"""
\documentclass[12pt,titlepage]{article}
\begin{document}
It is known that $\sin(0)="""+repr(math.sin(0))+r"""$
\end{document}"""
text_file = open(r"C:\tmp\p.tex", "w")
text_file.write(s)
text_file.close()
The above generates the Latex file
\documentclass[12pt,titlepage]{article}
\begin{document}
It is known that $\sin(0)=0.0$
\end{document}
From C++ (needs C++11)
#include
#include
#include
using namespace std;
int main()
{
//int r = 5;
string s =R"(
\documentclass[12pt,titlepage]{article}
\begin{document}
It is known that (a) $\sin(\pi)=)" + std::to_string(sin(M_PI)) + R"($
\end{document}
)";
}
cout