hypot
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Comuni funzioni matematiche
Funzioni
Original:
Functions
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Operazioni di base
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Basic operations
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Funzioni esponenziali
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Exponential functions
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Funzioni di risparmio energia
Original:
Power functions
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Funzioni trigonometriche e iperboliche
Original:
Trigonometric and hyperbolic functions
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Errore e gamma funzioni
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Error and gamma functions
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Più vicini operazioni di interi in virgola mobile
Original:
Nearest integer floating point operations
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Floating funzioni di manipolazione di punti
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Floating point manipulation functions
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Classificazione
Original:
Classification
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fpclassify (C99)
isfinite (C99)
isinf (C99)
isnan (C99)
isnormal (C99)
signbit (C99)
Macro costanti
Original:
Macro constants
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Elemento definito nell'header <math.h>
float hypotf( float x, float y );
double hypot( double x, double y );
long double hypotl( long double x, long double y );
Calcola la radice quadrata della somma dei quadrati di
x e y, senza troppopieno indebito o underflow intermedi del calcolo. Questa è la lunghezza dell'ipotenusa di un triangolo rettangolo con lati di lunghezza x e y, o la distanza del punto (x,y) dall'origine (0,0), o la grandezza di un x+iy numero complessoOriginal:
Computes the square root of the sum of the squares of
x and y, without undue overflow or underflow at intermediate stages of the computation. This is the length of the hypotenuse of a right-angled triangle with sides of length x and y, or the distance of the point (x,y) from the origin (0,0), or the magnitude of a complex number x+iyThe text has been machine-translated via Google Translate.
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[modifica] Parametri
x
-
valore in virgola mobile
Original:
floating point value
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y
-
valore in virgola mobile
Original:
floating point value
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[modifica] Valore di ritorno
L'ipotenusa di un triangolo rettangolo, √x2
+y2
.
+y2
.
Original:
The hypotenuse of a right-angled triangle, √x2
+y2
.
+y2
.
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[modifica] Eccezioni
Se il risultato overflow, un errore di campo si può verificare e FE_OVERFLOW può essere sollevata.
Original:
If the result overflows, a range error may occur and FE_OVERFLOW may be raised.
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Se il risultato è subnormale, un errore può verificarsi underflow e FE_UNDERFLOW può essere sollevata.
Original:
If the result is subnormal, an underflow error may occur and FE_UNDERFLOW may be raised.
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[modifica] Note
Strategia di attuazione tipico è quello di calcolare l'equivalente di u√1+(
dove
v
u
)2dove
u è max(x,y) e v è min(x,y).Original:
Typical implementation strategy is to calculate an equivalent of u√1+(
where
v
u
)2where
u is max(x,y) and v is min(x,y).The text has been machine-translated via Google Translate.
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[modifica] Esempio
This section is incomplete
Reason: no example
Reason: no example
[modifica] Vedi anche
calcola la radice quadrata (√x)
Original:
computes square root (√x)
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(funzione) [modifica]
solleva un numero alla potenza data (xy)
Original:
raises a number to the given power (xy)
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(funzione) [modifica]
C++ documentation for hypot