Hp 50g Graphing Calculator Instrukcja Użytkownika Pobierz pdf (Strona 163)

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Page 3-33

ZFACTOR(x

, y

), where x

is the reduced temperature, i.e., the ratio of actual

temperature to pseudo-critical temperature, and y

is the reduced pressure, i.e.,

the ratio of the actual pressure to the pseudo-critical pressure. The value of x

must be between 1.05 and 3.0, while the value of y

must be between 0 and

30. Example, in ALG mode:

Function F0λ

Function F0λ (T, λ) calculates the fraction (dimensionless) of total black-body

emissive power at temperature T between wavelengths 0 and

λ. If no units are

attached to T and

λ, it is implied that T is in K and λ in m. Example, in ALG

mode:

Function SIDENS

Function SIDENS(T) calculates the intrinsic density of silicon (in units of 1/cm

)

as a function of temperature T (T in K), for T between 0 and 1685 K. For

example,

Function TDELTA

Function TDELTA(T

) yields the temperature increment T

– T

. The result is

returned with the same units as T

, if any. Otherwise, it returns simply the

difference in numbers. For example,

The purpose of this function is to facilitate the calculation of temperature

differences given temperatures in different units. Otherwise, it’s simply

calculates a subtraction, e.g.,

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 886 887

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