Knowledge Base

Solution 14292: Performing Hyperbolic Cosecant, Cotangent and Cosine Functions on the TI-89 Family, TI-92 Plus and Voyage™ 200.

How do I perform the hyperbolic cosecant, cotangent and cosine functions on the TI-89 family, TI-92 Plus and Voyage 200?

The hyperbolic cosecant, cotangent and cosine functions can be found in the CATALOG menu of the TI-89 family, TI-92 Plus and Voyage 200. The syntax for these functions are:

hyperbolic cosecant= csch(expression)
hyperbolic cotangent= coth(expression)
hyperbolic cosine= cosh(expression)

Please refer to the examples provided below.

Example 1: Inputting cosh(1.2) will return the result of 1.81066.

Example 2: Inputting coth(1.2) will return the result of 1.19954.

Example 3: Inputting csch(1.2) will return the result of 0.662488.

Note: The result provided above are based on the calculator being in DEGREE Angle mode and APPROXIMATE Exact/Approx mode.

For additional instructions, refer to the online guidebook for your calculator.