documentclass[tikz,border=0.125cm]{standalone}
usetikzlibrary{math}
begin{document}

end{document}

! Package tikz Error: I did not find the tikz library 'math'. I looked for file
s named tikzlibrarymath.code.tex and pgflibrarymath.code.tex, but neither could
 be found in the current texmf trees..

See the tikz package documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.2 usetikzlibrary{math}