The calculator will find the inverse hyperbolic cosecant of the given value.
The inverse hyperbolic cosecant y=csch−1(x) or y=acsch(x) or y=arccsch(x) is such a function that csch(y)=x.
It can be expressed in terms of elementary functions: y=csch−1(x)=ln(x1+x21+1).
The domain of the inverse hyperbolic cosecant is (−∞,0)∪(0,∞), the range is (−∞,0)∪(0,∞).
It is an odd function.
Related calculator:
Hyperbolic Cosecant Calculator
Answer
acsch(−21)=−acsch(21)≈−1.44363547517881A
For graph, see the graphing calculator.