HP 39g+ Graphing Calculator Guia do Utilizador descarregar pdf (Página 158)

11-14 Using mathematical functions

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

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)

Example

HMS→(8.30) returns 8.5

→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)

Example

→HMS(8.5) returns 8.3

INT Integer part.

INT(value)

Example

INT(23.2) returns 23

MANT Mantissa (significant digits) of value.

MANT(value)

Example

MANT(21.2E34) returns 2.12

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 293 294

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HP 39g+ Graphing Calculator Guia do Utilizador Página 158