HP 40gs Manuale Utente Scaricare il pdf (Pagina 168)

100

101

13-14 Using mathematical functions

UTPT Upper-Tail Student’s t-Probability given degrees of

freedom, evaluated at value. Returns the probability that

the Student's t- random variable is greater than value.

UTPT(degrees, value)

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

DEG→RAD Degrees to radians. Converts value from Degrees angle

format to Radians angle format.

DEG→RAD(value)

Example

DEG→RAD(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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HP 40gs Manuale Utente Pagina 168

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