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CC78K4 Datasheet, PDF (265/523 Pages) NEC – CC78K4 Ver.2.30 or Later, C Compiler Language | |||
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CHAPTER 10 LIBRARY FUNCTIONS
7-33 tanhf
Mathematical Functions
FUNCTION
tanhf finds tanh.
HEADER
math.h
FUNCTION PROTOTYPE
float tanhf (float x);
Function
tanhf
Arguments
x ... Numeric value to perform
operation
Return Value
Normal ... tanh of x
x = NaN ... NaN
When x = ±â ... ±1
When underflow occurs ... ±0
EXPLANATION
⢠Calculates tanh of x.
⢠If x is non-numeric, NaN is returned.
⢠If x is ±â, ±1 is returned.
⢠If an underflow occurs as a result of the operation, ±0 is returned.
Userâs Manual U15556EJ1V0UM
265
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