com.trassare.calculator.engine
Class Operation

java.lang.Object
  com.trassare.calculator.engine.Operation

public final class Operation
extends Object

This class contains the mathematical operations that are not native to the BigDecimal class. By placing them in this class, the InfixCalculator's primary purpose is to parse the expression.

Version:

8 September 2006

Author:

Samuel T Trassare

Nested Class Summary

static class

Operation.OperationException An exception to indicate an invalid number in an operation.

Field Summary

protected static int

BASE_TEN The base-10 constant for logarithmic operations.

Method Summary

protected static BigDecimal	acos(BigDecimal bd)
protected static BigDecimal	asin(BigDecimal bd)
protected static BigDecimal	atan(BigDecimal bd)
protected static BigDecimal	cos(BigDecimal bd)
protected static BigDecimal	ln(BigDecimal bd)
protected static BigDecimal	sin(BigDecimal bd)
protected static BigDecimal	tan(BigDecimal bd)

Methods inherited from class java.lang.Object

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

Field Detail

BASE_TEN

protected static final int BASE_TEN

The base-10 constant for logarithmic operations.

See Also:

Constant Field Values

Method Detail

acos

protected static BigDecimal acos(BigDecimal bd)
                          throws Operation.OperationException

Parameters:

bd - The number to which the arccosine operation will be applied.

Returns:

the arccosine of the input number

Throws:

Operation.OperationException - if the input value > 1 an OperationException is thrown

asin

protected static BigDecimal asin(BigDecimal bd)
                          throws Operation.OperationException

Parameters:

bd - The number to which the arcsine operation will be applied.

Returns:

the arcsine of the input number

Throws:

Operation.OperationException - if the input value > 1 an OperationException is thrown

atan

protected static BigDecimal atan(BigDecimal bd)

Parameters:

bd - The number to which the arctangent operation will be applied.

Returns:

the arctangent of the input number

cos

protected static BigDecimal cos(BigDecimal bd)

Parameters:

bd - The number to which the cosine operation will be applied.

Returns:

the cosine of the input number

ln

protected static BigDecimal ln(BigDecimal bd)

Parameters:

bd - The number to which the natural log operation will be applied.

Returns:

the natural logarithm of the input number

sin

protected static BigDecimal sin(BigDecimal bd)

Parameters:

bd - The number to which the sine operation will be applied.

Returns:

the sine of the input number

tan

protected static BigDecimal tan(BigDecimal bd)
                         throws Operation.OperationException

Parameters:

bd - The number to which the tangent operation will be applied.

Returns:

the tangent of the input number

Throws:

Operation.OperationException - The input number cannot be a factor of PI/2