java.lang.Objectjus.util.Calcul
public class Calcul
modification de la classe math pour pouvoir l'intancier (pedagogique)
Constructor Summary | |
---|---|
Calcul()
|
Method Summary | |
---|---|
double |
abs(double a)
Returns the absolute value of a double value. |
float |
abs(float a)
Returns the absolute value of a float value. |
int |
abs(int a)
Returns the absolute value of an int value. |
long |
abs(long a)
Returns the absolute value of a long value. |
double |
acos(double a)
Returns the arc cosine of an angle, in the range of 0.0 through pi. |
double |
asin(double a)
Returns the arc sine of an angle, in the range of -pi/2 through pi/2. |
double |
atan(double a)
Returns the arc tangent of an angle, in the range of -pi/2 through pi/2. |
double |
atan2(double a,
double b)
Converts rectangular coordinates ( b , a )
to polar (r, theta). |
double |
ceil(double a)
Returns the smallest (closest to negative infinity) double value that is not less than the argument and is
equal to a mathematical integer. |
double |
cos(double a)
Returns the trigonometric cosine of an angle. |
double |
E()
The double value that is closer than any other to
e , the base of the natural logarithms. |
double |
exp(double a)
Returns the exponential number e (i.e., 2.718...) raised to the power of a double value. |
double |
floor(double a)
Returns the largest (closest to positive infinity) double value that is not greater than the argument and
is equal to a mathematical integer. |
double |
IEEEremainder(double f1,
double f2)
Computes the remainder operation on two arguments as prescribed by the IEEE 754 standard. |
double |
log(double a)
Returns the natural logarithm (base e) of a double
value. |
double |
max(double a,
double b)
Returns the greater of two double values. |
float |
max(float a,
float b)
Returns the greater of two float values. |
int |
max(int a,
int b)
Returns the greater of two int values. |
long |
max(long a,
long b)
Returns the greater of two long values. |
double |
min(double a,
double b)
Returns the smaller of two double values. |
float |
min(float a,
float b)
Returns the smaller of two float values. |
int |
min(int a,
int b)
Returns the smaller of two int values. |
long |
min(long a,
long b)
Returns the smaller of two long values. |
int |
pgcd(int a,
int b)
retourne le pgcd de 2 nombres entiers |
double |
PI()
The double value that is closer than any other to
pi, the ratio of the circumference of a circle to its diameter. |
double |
pow(double a,
double b)
Returns of value of the first argument raised to the power of the second argument. |
double |
random()
Returns a random number between 0.0 and 1.0 . |
double |
rint(double a)
returns the closest integer to the argument. |
long |
round(double a)
Returns the closest long to the argument. |
int |
round(float a)
Returns the closest int to the argument. |
double |
sin(double a)
Returns the trigonometric sine of an angle. |
double |
sqrt(double a)
Returns the square root of a double value. |
double |
tan(double a)
Returns the trigonometric tangent of an angle. |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public Calcul()
Method Detail |
---|
public double E()
double
value that is closer than any other to
e
, the base of the natural logarithms.
public double PI()
double
value that is closer than any other to
pi, the ratio of the circumference of a circle to its diameter.
public double sin(double a)
a
- an angle, in radians.
public double cos(double a)
a
- an angle, in radians.
public double tan(double a)
a
- an angle, in radians.
public double asin(double a)
a
- an angle, in radians.
public double acos(double a)
a
- an angle, in radians.
public double atan(double a)
a
- an angle, in radians.
public double exp(double a)
double
value.
a
- a double
value.
public double log(double a)
double
value.
a
- a number greater than 0.0
.
a
, the natural logarithm of
a
.public double sqrt(double a)
double
value.
a
- a double
value.
a
.
If the argument is NaN or less than zero, the result is NaN.public double IEEEremainder(double f1, double f2)
f1 - f2
× n,
where n is the mathematical integer closest to the exact
mathematical value of the quotient f1/f2
, and if two
mathematical integers are equally close to f1/f2
,
then n is the integer that is even. If the remainder is
zero, its sign is the same as the sign of the first argument.
f1
- the dividend.f2
- the divisor.
f1
is divided by
f2
.public double ceil(double a)
double
value that is not less than the argument and is
equal to a mathematical integer.
a
- a double
value.
double
value that is not less than the argument
and is equal to a mathematical integer.public double floor(double a)
double
value that is not greater than the argument and
is equal to a mathematical integer.
a
- a double
value.
double
value that is not greater than the argument
and is equal to a mathematical integer.public double rint(double a)
a
- a double
value.
double
value to a
that is
equal to a mathematical integer. If two double
values that are mathematical integers are equally close to the
value of the argument, the result is the integer value that
is even.public double atan2(double a, double b)
b
, a
)
to polar (r, theta).
This method computes the phase theta by computing an arc tangent
of b/a
in the range of -pi to pi.
a
- a double
value.b
- a double
value.
public double pow(double a, double b)
If (a == 0.0
), then b
must be
greater than 0.0
; otherwise an exception is thrown.
An exception also will occur if (a <= 0.0
)
and b
is not equal to a whole number.
a
- a double
value.b
- a double
value.
ab
.
java.lang.ArithmeticException
- if (a == 0.0
) and
(b <= 0.0
), or
if (a <= 0.0
) and b
is not equal to a whole number.public int round(float a)
int
to the argument.
If the argument is negative infinity or any value less than or
equal to the value of Integer.MIN_VALUE
, the result is
equal to the value of Integer.MIN_VALUE
.
If the argument is positive infinity or any value greater than or
equal to the value of Integer.MAX_VALUE
, the result is
equal to the value of Integer.MAX_VALUE
.
a
- a float
value.
int
value.Integer.MAX_VALUE
,
Integer.MIN_VALUE
public long round(double a)
long
to the argument.
If the argument is negative infinity or any value less than or
equal to the value of Long.MIN_VALUE
, the result is
equal to the value of Long.MIN_VALUE
.
If the argument is positive infinity or any value greater than or
equal to the value of Long.MAX_VALUE
, the result is
equal to the value of Long.MAX_VALUE
.
a
- a double
value.
long
value.Long.MAX_VALUE
,
Long.MIN_VALUE
public double random()
0.0
and 1.0
.
Random number generators are often referred to as pseudorandom number
generators because the numbers produced tend to repeat themselves after
a period of time.
double
between 0.0
and 1.0
.Random.nextDouble()
public int abs(int a)
int
value.
If the argument is not negative, the argument is returned.
If the argument is negative, the negation of the argument is returned.
Note that if the argument is equal to the value of
Integer.MIN_VALUE
, the most negative representable
int
value, the result is that same value, which is
negative.
a
- an int
value.
Integer.MIN_VALUE
public long abs(long a)
long
value.
If the argument is not negative, the argument is returned.
If the argument is negative, the negation of the argument is returned.
Note that if the argument is equal to the value of
Long.MIN_VALUE
, the most negative representable
long
value, the result is that same value, which is
negative.
a
- a long
value.
Long.MIN_VALUE
public float abs(float a)
float
value.
If the argument is not negative, the argument is returned.
If the argument is negative, the negation of the argument is returned.
a
- a float
value.
public double abs(double a)
double
value.
If the argument is not negative, the argument is returned.
If the argument is negative, the negation of the argument is returned.
a
- a double
value.
public int max(int a, int b)
int
values.
a
- an int
value.b
- an int
value.
a
and b
.public long max(long a, long b)
long
values.
a
- a long
value.b
- a long
value.
a
and b
.public float max(float a, float b)
float
values. If either value
is NaN
, then the result is NaN
. Unlike the
the numerical comparison operators, this method considers negative zero
to be strictly smaller than positive zero.
a
- a float
value.b
- a float
value.
a
and b
.public double max(double a, double b)
double
values. If either value
is NaN
, then the result is NaN
. Unlike the
the numerical comparison operators, this method considers negative zero
to be strictly smaller than positive zero.
a
- a double
value.b
- a double
value.
a
and b
.public int min(int a, int b)
int
values.
a
- an int
value.b
- an int
value.
a
and b
.public long min(long a, long b)
long
values.
a
- a long
value.b
- a long
value.
a
and b
.public float min(float a, float b)
float
values. If either value
is NaN
, then the result is NaN
. Unlike the
the numerical comparison operators, this method considers negative zero
to be strictly smaller than positive zero.
a
- a float
value.b
- a float
value.
a
and b.
public double min(double a, double b)
double
values. If either value
is NaN
, then the result is NaN
. Unlike the
the numerical comparison operators, this method considers negative zero
to be strictly smaller than positive zero.
a
- a double
value.b
- a double
value.
a
and b
.public int pgcd(int a, int b)
a
- un entierb
- un entier