HP 38g Graphing Calculator User Manual
Page 63
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Trigonometry
Functions
The trigonometry functions can also take complex numbers
as arguments. For SIN, COS, TAN, ASIN, ACOS, and ATAN, see
the Keyboard category (all these functions have keys).
ACOT
Arc cotangent.
ACOT
(
value)
ACSC
Arc cosecant.
ACSC
{value)
ASEC
Arc secant.
ASEC
{value)
COT
Cotangent: cosx/sinx.
COT {value)
CSC
Cosecant: 1/sinx
CSC {value)
SEC
Secant: 1/cosx.
SEC {value)
Mathematical Calculations 2-27
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