HNumber

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com.hartmath.expression
Interface HNumber

All Known Subinterfaces:: HRational, HSignedNumber

All Known Implementing Classes:: HComplex, HDouble, HDoubleComplex, HFraction, HInteger

public interface HNumber

Interface that represents a number.

Method Summary

HObject abs(com.hartmath.lib.Session session)
          Returns the absolute value.

int compSignum()
          0 for this == 0; +1 for re(this) > 0 or ( re(this)==0 and im(this)>0 ); -1 for re(this) < 0 or ( re(this)==0 and im(this)<0 );

HObject conjugate()
          returns the conjugate complex of a number

HObject im()
          returns the imaginary part of a number

boolean isZero()
          Gets the zero attribute of the HNumber object

HObject re()
          returns the real part of a number

Method Detail

compSignum

public int compSignum()

0 for this == 0; +1 for re(this) > 0 or ( re(this)==0 and im(this)>0 ); -1 for re(this) < 0 or ( re(this)==0 and im(this)<0 );

abs

public HObject abs(com.hartmath.lib.Session session)

Returns the absolute value. If the argument is not negative, the argument is returned. If the argument is negative, the negation of the argument is returned.

conjugate

public HObject conjugate()

returns the conjugate complex of a number

re

public HObject re()

returns the real part of a number

im

public HObject im()

returns the imaginary part of a number

isZero

public boolean isZero()

Gets the zero attribute of the HNumber object