abbreviation. The area hyberbolic cotangent function, i.e., the inverse hyperbolic cotangent function.
Word Usage
"In for - mulas and equations, they are abbreviated arcsinh or sinhÀ1, arccosh or coshÀ1, arctanh or tanhÀ1, arccsch or cschÀ1, arcsech or sechÀ1, and arccoth or cothÀ1 respectively."