HP 39g+ - Manual (Page 157)

Using mathematical functions 10-21
AND Compares value1 and value2. Returns 1 if they are both non-
zero, otherwise returns 0.
value1 AND value2
IFTE If expression is true, do the trueclause; if not, do the
falseclause.
IFTE( expression , trueclause , falseclause )
Example
IFTE(X>0,X
2
,X
3
)
NOT Returns 1 if value is zero, otherwise returns 0.
NOT value
OR Returns 1 if either value1 or value2 is non-zero, otherwise
returns 0.
value1 OR value2
XOR Exclusive OR. Returns 1 if either value1 or value2—but not
both of them—is non-zero, otherwise returns 0.
value1 XOR value2
Trigonometry functions
The trigonometry functions can also take complex numbers as
arguments. For SIN, COS, TAN, ASIN, ACOS, and ATAN,
see the Keyboard category.
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)