cnslab.cnsmath

Class Matrix<T>

java.lang.Object

cnslab.cnsmath.Matrix<T>

public class Matrix<T>
extends Object

Constructor Summary

Constructors

Constructor and Description
Matrix(int m, int n)
Matrix(int m, int n, T s)
Matrix(T[][] A) Construct a matrix from a 2-D array.
Matrix(T[] vals, int m) Construct a matrix from a one-dimensional packed array

Method Summary

Methods

Modifier and Type	Method and Description
void	print()
void	print(int w, int d) Print the matrix to stdout.
void	print(PrintWriter output, int w, int d) Print the matrix to the output stream.
void	print(PrintWriter output, NumberFormat format, int width) Print the matrix to stdout.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Matrix

public Matrix(int m,
      int n)

Matrix

public Matrix(int m,
      int n,
      T s)

Matrix

public Matrix(T[][] A)

Construct a matrix from a 2-D array.

Parameters:

A - Two-dimensional array of doubles.

Throws:

IllegalArgumentException - All rows must have the same length

See Also:

#constructWithCopy

Matrix

public Matrix(T[] vals,
      int m)

Construct a matrix from a one-dimensional packed array

Parameters:

vals - One-dimensional array of doubles, packed by rows (ala C++).

m - Number of rows.

Throws:

IllegalArgumentException - Array length must be a multiple of m.

Method Detail

print

public void print(PrintWriter output,
         NumberFormat format,
         int width)

Print the matrix to stdout. Line the elements up in columns. Use the format object, and right justify within columns of width characters. Note that is the matrix is to be read back in, you probably will want to use a NumberFormat that is set to US Locale.

Parameters:

format - A Formatting object for individual elements.

width - Field width for each column.

See Also:

DecimalFormat.setDecimalFormatSymbols(java.text.DecimalFormatSymbols)

print

public void print(PrintWriter output,
         int w,
         int d)

Print the matrix to the output stream. Line the elements up in columns with a Fortran-like 'Fw.d' style format.

Parameters:

output - Output stream.

w - Column width.

d - Number of digits after the decimal.

print

public void print(int w,
         int d)

Print the matrix to stdout. Line the elements up in columns with a Fortran-like 'Fw.d' style format.

Parameters:

w - Column width.

d - Number of digits after the decimal.

print

public void print()