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[cas] use of functions hyperbolic secant and cosecant and inverses
06-08-2016, 11:57 AM (This post was last modified: 06-13-2016 12:04 PM by compsystems.)
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[cas] use of functions hyperbolic secant and cosecant and inverses
why not to included the hyperbolic secant and cosecant and inverses?

high school algebra books and first levels of engineering the show.
these elementary functions must be in the system built-in.

that you think, are important SECH() and CSECH() in engineering and education? other CAS include them, why not xcas?

It would also allow display outputs rewritten or simplified
https://www.wolframalpha.com/input/?i=di...h(x%2F2)))

with SECH() and CSECH()
diff (2* atan(tanh(x/2))) -> sech(x)

int(sech(x)) -> (2* atan(tanh(x/2)))

current CAS, WITHOUT SECH() and CSECH()

diff (2* atan(tanh(x/2))) -> (-tanh((x/2))^2+1)/(tanh((x/2))^2+1)

more info WIKIPEDIA Inverse hyperbolic function
https://en.wikipedia.org/wiki/Inverse_hy...c_function
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[cas] use of functions hyperbolic secant and cosecant and inverses - compsystems - 06-08-2016 11:57 AM



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