HP 38g Graphing Calculator - Manual (Page 59)

Real-Number
Functions
Some real-number functions can also take complex
arguments.
CEIUNG Smallest integer greater than, equal to value.
CEILING (oa/ue)
DEG->RAD Degrees to radians. Converts value from Degrees angle format
to Radians angle format.
DEG—>RA.D ( VOltlB )
FLOOR Greatest integer less than or equal to value.
FLOOR (value)
FNROOT Function root-finder (like Solver aplet). Finds the value for the
given variable at which expression most nearly evaluates to
zero. Uses guess as initial estimate.
FNROOT (express/ou, variable, guess)
FRAG Fractional part.
FRAC (value)
HMS-> Hours-minutes-seconds to decimal. Converts a number or
expression in
H.MMSSs
format (time or angle that can include
fractions of a second) to x.x format (number of hours or
degrees with a decimal fraction).
HMS-> (
H.MMSSs)
-^HMS Decimal to hours-minutes-seconds. Converts a number or
expression in x.x format (number of hours or degrees with a
decimal fraction) to
H.MMSSs
format (time or angle up to
fractions of a second).
—>HMS (x.x)
INT Integer part.
INT ( value)
MANX Mantissa (significant digits) of value.
MANT ( value)
Mathematical Calculations 2-23