Texas Instruments TINSPIRE Reference Guide - Page 108
arctanh
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tan/( ) tan/(squareMatrix1) ⇒ squareMatrix In Radian angle mode: Returns the matrix inverse tangent of squareMatrix1. This is not the same as calculating the inverse tangent of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. tanh( ) tanh(Value1) ⇒ value tanh(List1) ⇒ list tanh(Value1) returns the hyperbolic tangent of the argument. tanh(List1) returns a list of the hyperbolic tangents of each element of List1. tanh(squareMatrix1) ⇒ squareMatrix In Radian angle mode: Returns the matrix hyperbolic tangent of squareMatrix1. This is not the same as calculating the hyperbolic tangent of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. μ key Catalog > tanh/( ) Catalog > tanh/(Value1) ⇒ value tanh/(List1) ⇒ list In Rectangular complex format: tanh/(Value1) returns the inverse hyperbolic tangent of the argument. tanh/(List1) returns a list of the inverse hyperbolic tangents of each element of List1. Note: You can insert this function from the keyboard by typing arctanh(...). £ ¡ ¢ To see the entire result, press and then use and to move the cursor. tanh/(squareMatrix1) ⇒ squareMatrix In Radian angle mode and Rectangular complex format: Returns the matrix inverse hyperbolic tangent of squareMatrix1. This is not the same as calculating the inverse hyperbolic tangent of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. £ ¡ ¢ To see the entire result, press and then use and to move the cursor. 102 TI-Nspire™ Reference Guide