# Copy to ~/.global.sage
from subprocess import run
ht_filename = "/tmp/mathtemp.html"
def wv(expr):
"""
View an expression as LaTeX -> mathjax+html in a browser tab
"""
with open(ht_filename, "w") as f:
f.write(f"""
vis
$${latex(expr)}$$
""")
run(["open", ht_filename])