I get a very similar problem to this question except it does not solve my problem or I dont understand the solution?
r"($\sqrt{{0}}$)".format(unit)
gives me '($\\sqrt{0}$)'
and r"($\sqrt{ {0} }$)".format(unit), r"($\sqrt{in, {0} }$)".format(unit) throws me this error:
ValueError: unexpected '{' in field name
How to insert the unit into the latex string?