HP 39g Graphing Calculator Guía de usuario Pagina 151

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Using mathematical functions 10-15
Real-number functions
Some real-number functions can also take complex
arguments.
CEILING Smallest integer greater than or equal to value.
CEILING(value)
Examples
CEILING(3.2) returns 4
CEILING(-3.2) returns -3
DEGRAD Degrees to radians. Converts value from Degrees angle
format to Radians angle format.
DEGRAD(value)
Example
DEGRAD(180) returns 3.14159265359, the
value of π.
FLOOR Greatest integer less than or equal to value.
FLOOR(value)
Example
FLOOR(-3.2) returns -4
FNROOT Function root-finder (like the Solve aplet). Finds the value for
the given variable at which expression most nearly evaluates
to zero. Uses guess as initial estimate.
FNROOT(expression, variable, guess)
Example
FNROOT(M*9.8/600-1,M,1) returns
61.2244897959.
FRAC Fractional part.
FRAC(value)
Example
FRAC (23.2) returns .2
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