Utils (Jzy3d API 1.0.0-SNAPSHOT API)

java.lang.Object
- org.jzy3d.maths.Utils

```
public class Utils
extends Object
```

Constructor Summary

Constructors
Constructor and Description

Utils()

Constructors
Constructor and Description
`Utils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static double[]`	`abs(double[] values)` Computes the absolute values of an array of doubles.
`static String`	`blanks(int length)`
`static long`	`dat2num(Date date)`
`static String`	`dat2str(Date date)` Convert a date to the format "dd/MM/yyyy HH:mm:ss".
`static String`	`dat2str(Date date, String format)` Some example format dd.MM.yy 09.04.98 yyyy.MM.dd G 'at' hh:mm:ss z 1998.04.09 AD at 06:15:55 PDT EEE, MMM d, ''yy Thu, Apr 9, '98 h:mm a 6:15 PM H:mm 18:15 H:mm:ss:SSS 18:15:55:624 K:mm a,z 6:15 PM,PDT yyyy.MMMMM.dd GGG hh:mm aaa 1998.April.09 AD 06:15 PM
`static Date`	`max(Date[] dates)` Return the maximal date of an array
`static Date`	`min(Date[] dates)` Return the minimal date of an array
`static Date`	`num2dat(long value)`
`static String`	`num2str(char parseMode, double num)` Same as `num2str(char parseMode, double num, int precision)` but does not query precision.
`static String`	`num2str(char parseMode, double num, int precision)` Convert a number into a string, with `precision` number of meaningfull digits.
`static String`	`num2str(double num)` Convert a number into a string.
`static String`	`num2str(double num, int precision)`
`static Date`	`str2date(String string)`
`static double`	`sum(double[] values)` Computes the sum of an array of doubles.
`static int`	`sum(int[] values)` Computes the sum of an array of doubles.
`static String`	`time2str(long milli)`
`static double[]`	`vector(double min, double max)` Generate a vector containing regular increasing values from min to max, with an offset 1.
`static double[]`	`vector(double min, double max, int nstep)` Generate a vector containing regular increasing values from min to max, with an offset of nstep.
`static int[]`	`vector(int min, int max)` Generate a vector containing regular increasing values from min to max, with an offset 1.
`static int[]`	`vector(int min, int max, int nstep)` Generate a vector containing regular increasing values from min to max, with an offset of nstep.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Utils
```
public Utils()
```
- Method Detail
  - num2str
```
public static String num2str(char parseMode,
                             double num,
                             int precision)
```
    Convert a number into a string, with precision number of meaningfull digits. 'd' integral The result is formatted as a decimal integer 'o' integral The result is formatted as an octal integer 'x', 'X' integral The result is formatted as a hexadecimal integer 'e', 'E' floating point The result is formatted as a decimal number in computerized scientific notation 'f' floating point The result is formatted as a decimal number 'g', 'G' floating point The result is formatted using computerized scientific notation or decimal format, depending on the precision and the value after rounding.
    
    See Also:
    
    ://java.sun.com/j2se/1.5.0/docs/api/java/util/Formatter.html#syntax, String.format
  - num2str
```
public static String num2str(char parseMode,
                             double num)
```
    Same as num2str(char parseMode, double num, int precision) but does not query precision.
  - num2str
```
public static String num2str(double num,
                             int precision)
```
  - num2str
```
public static String num2str(double num)
```
    Convert a number into a string.
  - dat2str
```
public static String dat2str(Date date)
```
    Convert a date to the format "dd/MM/yyyy HH:mm:ss".
  - dat2str
```
public static String dat2str(Date date,
                             String format)
```
    Some example format dd.MM.yy 09.04.98 yyyy.MM.dd G 'at' hh:mm:ss z 1998.04.09 AD at 06:15:55 PDT EEE, MMM d, ''yy Thu, Apr 9, '98 h:mm a 6:15 PM H:mm 18:15 H:mm:ss:SSS 18:15:55:624 K:mm a,z 6:15 PM,PDT yyyy.MMMMM.dd GGG hh:mm aaa 1998.April.09 AD 06:15 PM
    
    Parameters:
    
    date -
    
    format -
    
    Returns:
    
    See Also:
    
    ://java.sun.com/docs/books/tutorial/i18n/format/simpleDateFormat. html
  - dat2num
```
public static long dat2num(Date date)
```
  - num2dat
```
public static Date num2dat(long value)
```
  - time2str
```
public static String time2str(long milli)
```
  - blanks
```
public static String blanks(int length)
```
  - abs
```
public static double[] abs(double[] values)
```
    Computes the absolute values of an array of doubles.
    
    Parameters:
    
    values -
    
    Returns:
    
    the sum of input values
  - sum
```
public static double sum(double[] values)
```
    Computes the sum of an array of doubles. NaN values are ignored during the computation.
    
    Parameters:
    
    values -
    
    Returns:
    
    the sum of input values
  - sum
```
public static int sum(int[] values)
```
    Computes the sum of an array of doubles. NaN values are ignored during the computation.
    
    Parameters:
    
    values -
    
    Returns:
    
    the sum of input values
  - vector
```
public static double[] vector(double min,
                              double max,
                              int nstep)
```
    Generate a vector containing regular increasing values from min to max, with an offset of nstep.
    
    Parameters:
    
    min -
    
    max -
    
    nstep -
    
    Returns:
  - vector
```
public static double[] vector(double min,
                              double max)
```
    Generate a vector containing regular increasing values from min to max, with an offset 1.
    
    Parameters:
    
    min -
    
    max -
    
    Returns:
  - vector
```
public static int[] vector(int min,
                           int max,
                           int nstep)
```
    Generate a vector containing regular increasing values from min to max, with an offset of nstep.
    
    Parameters:
    
    min -
    
    max -
    
    nstep -
    
    Returns:
  - vector
```
public static int[] vector(int min,
                           int max)
```
    Generate a vector containing regular increasing values from min to max, with an offset 1.
    
    Parameters:
    
    min -
    
    max -
    
    Returns:
  - min
```
public static Date min(Date[] dates)
```
    Return the minimal date of an array
    
    Parameters:
    
    dates -
    
    Returns:
  - max
```
public static Date max(Date[] dates)
```
    Return the maximal date of an array
    
    Parameters:
    
    dates -
    
    Returns:
  - str2date
```
public static Date str2date(String string)
                     throws ParseException
```
    Throws:
    
    ParseException

Class Utils

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Utils

Method Detail

num2str

num2str

num2str

num2str

dat2str

dat2str

dat2num

num2dat

time2str

blanks

abs

sum

sum

vector

vector

vector

vector

min

max

str2date