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A to Z of Excel Functions: The CSCH Function

26 February 2018

Welcome back to our regular A to Z of Excel Functions blog. Today we look at the CSCH function.

The CSCH function

The hyperbolic cosecant function is an old mathematical function. It has a simple definition as the reciprocal to hyperbolic sine function:

It has the following chart properties:

This function returns the hyperbolic cosecant of an angle specified in radians.

The CSCH function employs the following syntax to operate:


The CSCH function has the following arguments:

  • number: this is required.

It should be further noted that:

  • the absolute value of number must be less than 2^27
  • if number is outside its constraints, CSCH returns the #NUM! error value
  • if number is a non-numeric value, CSCH returns the #VALUE! error value.

Please see my example below:

We’ll continue our A to Z of Excel Functions soon. Keep checking back – there’s a new blog post every business day.