"
 COPYRIGHT (c) 1988 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"

"{ Package: 'stx:libbasic' }"

ArithmeticValue subclass:#Number
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'Magnitude-Numbers'
!

!Number class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1988 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"
!

documentation
"
    abstract superclass for all kinds of numbers

    [author:]
	Claus Gittinger

    [see also:]
	Integer LargeInteger SmallInteger
	LimitedPrecisionReal Float ShortFloat
	Fraction FixedPoint
"
! !

!Number class methodsFor:'instance creation'!

fromString:aString
    "for compatibility with other smalltalks - same as #readFrom:"

    |s num|

    s := aString readStream.
    num := self readFrom:s onError:[^ self error:'invalid number'].
    s atEnd ifFalse:[^ self error:'garbage at end of number'].
    ^ num.

    "
     Number fromString:'12345'
     Number fromString:'abc'
     Number fromString:'1abc'
     '12345' asNumber
    "

    "Modified: / 3.8.1998 / 20:05:11 / cg"
!

fromString:aString onError:exceptionBlock
    "for compatibility with other smalltalks - same as #readFrom:"

    ^ self readFrom:aString onError:exceptionBlock

    "
     Number fromString:'12345' onError:0
     Number fromString:'fooBarBaz' onError:0
    "

    "Modified: / 3.8.1998 / 20:05:34 / cg"
!

readFrom:aStringOrStream onError:exceptionBlock
    "return the next Number from the (character-)stream aStream;
     skipping all whitespace first; return the value of exceptionBlock,
     if no number can be read.
     This method is less strict than the smalltalk number reader; it
     allows for prefixed + and also allows missing fractional part after eE"

    ^ [
        |value intValue mantissaAndScale scale decimalMantissa str 
         nextChar radix negative signExp exp denom|

        str := aStringOrStream readStream.

        nextChar := str skipSeparators.
        nextChar isNil ifTrue:[^ exceptionBlock value].

        (nextChar == $-) ifTrue:[
            negative := true.
            str next.
            nextChar := str peekOrNil
        ] ifFalse:[
            negative := false.
            (nextChar == $+) ifTrue:[
                str next.
                nextChar := str peekOrNil
            ]
        ].
        (nextChar isDigit or:[nextChar == $.]) ifFalse:[
            ^ exceptionBlock value.
"/          value := super readFrom:str.
"/          negative ifTrue:[value := value negated].
"/          ^ value
        ].
        nextChar == $. ifTrue:[
            radix := 10.
            value := 0.0.
            intValue := 0.
        ] ifFalse:[
            value := Integer readFrom:str radix:10.
            nextChar := str peekOrNil.
            ((nextChar == $r) or:[ nextChar == $R]) ifTrue:[
                str next.
                radix := value.
                value := Integer readFrom:str radix:radix.
            ] ifFalse:[
                radix := 10
            ].
            intValue := value.
        ].

        (nextChar == $.) ifTrue:[
            str next.
            nextChar := str peekOrNil.
            scale := 0.
            decimalMantissa := 0.
            (nextChar notNil and:[nextChar isDigitRadix:radix]) ifTrue:[
                mantissaAndScale := Number readMantissaAndScaleFrom:str radix:radix.
                value := value asFloat + (mantissaAndScale first).
                nextChar := str peekOrNil
            ]
        ].
        ('eEdDqQ' includes:nextChar) ifTrue:[
            str next.
            nextChar := str peekOrNil.
            signExp := 1.
            (nextChar == $+) ifTrue:[
                str next.
                nextChar := str peekOrNil.
            ] ifFalse:[
                (nextChar == $-) ifTrue:[
                    str next.
                    nextChar := str peekOrNil.
                    signExp := -1
                ]
            ].
            ('qQ' includes:nextChar) ifTrue:[
                value := value asLongFloat.
            ] ifFalse:[
                value := value asFloat.
"/ future: (for now, always create Doubles for Dolphin,Squeak etc. compatibility
"/                ('eE' includes:nextChar) ifTrue:[
"/                    value := value asShortFloat
"/                ]
            ].
            (nextChar notNil and:[(nextChar isDigitRadix:radix)]) ifTrue:[
                exp := (Integer readFrom:str radix:radix) * signExp.
                value := value * ((value class unity * 10.0) raisedToInteger:exp)
            ]
        ] ifFalse:[
            ('s' includes:nextChar) ifTrue:[
                mantissaAndScale isNil ifTrue:[
                    value := intValue asFixedPoint:0.
                ] ifFalse:[
                    denom := 10 raisedTo:mantissaAndScale last.
                    value := FixedPoint 
                                numerator:(intValue * denom) + (mantissaAndScale second)
                                denominator:denom
                                scale:mantissaAndScale last.
                ].
            ]
        ].
        negative ifTrue:[
            value := value negated
        ].
        value.
    ] on:Error do:exceptionBlock

    "
     Number readFrom:(ReadStream on:'54.32e-01')      
     Number readFrom:(ReadStream on:'12345678901234567890') 
     Number readFrom:(ReadStream on:'12345678901234567890.0') 
     Number readFrom:(ReadStream on:'12345678901234567890.012345678901234567890') 
     Number readFrom:(ReadStream on:'16rAAAAFFFFAAAAFFFF') 
     Number readFrom:'16rAAAAFFFFAAAAFFFF' 
     Number readFrom:'0.000001'  
     '+00000123.45' asNumber  
     Number readFrom:'99s'      
     Number readFrom:'99.00s'      
     Number readFrom:'99.0000000s'      
     Number readFrom:'.0000000s'      
     Number readFrom:'.0000000q'      
     Number readFrom:'.0000000f'      
     Number readFrom:'.0000000e'      
     Number readFrom:'.0000000s1'      
     Number readFrom:'.0000000q1'      
     Number readFrom:'.0000000f1'      
     Number readFrom:'.0000000e1'      
    "

    "Modified: / 14.4.1998 / 19:22:50 / cg"
!

readSmalltalkSyntaxFrom:aStream
    "ST-80 compatibility (thanks to a note from alpha testers)
     read and return the next Number in smalltalk syntax from the 
     (character-) aStream.
     Returns nil if aStream contains no valid number."

    ^ Scanner scanNumberFrom:aStream
"/    ^ Compiler evaluate:aStream compile:false "/ self readFrom:aStream.

    "
     Number readSmalltalkSyntaxFrom:'99d'    
     Number readSmalltalkSyntaxFrom:'99.00d'    
     Number readSmalltalkSyntaxFrom:(ReadStream on:'54.32e-01')    
     Number readSmalltalkSyntaxFrom:(ReadStream on:'12345678901234567890')
     Number readSmalltalkSyntaxFrom:(ReadStream on:'16rAAAAFFFFAAAAFFFF')
     Number readSmalltalkSyntaxFrom:(ReadStream on:'(1/10)') 
     Number readFrom:(ReadStream on:'(1/10)') 
     Number readSmalltalkSyntaxFrom:(ReadStream on:'+00000123.45')  
     Number readFrom:(ReadStream on:'+00000123.45')  

     |s|
     s := ReadStream on:'2.'.
     Number readSmalltalkSyntaxFrom:s.
     s next    

     |s|
     s := ReadStream on:'2.0.'.
     Number readSmalltalkSyntaxFrom:s.
     s next    
    "

    "Modified: / 19.11.1999 / 18:26:47 / cg"
! !

!Number class methodsFor:'error reporting'!

raise:aSignalSymbolOrErrorClass receiver:someNumber selector:sel arg:arg errorString:text 
    "ST-80 compatible signal raising. Provided for PD numeric classes"

    <context: #return>

    ^ self
        raise:aSignalSymbolOrErrorClass 
        receiver:someNumber 
        selector:sel 
        arguments:(Array with:arg)
        errorString:text 

    "
     Number 
        raise:#domainErrorSignal
        receiver:1.0
        selector:#sin
        arg:nil
        errorString:'foo bar test'
    "

    "Modified: / 16.11.2001 / 14:12:50 / cg"
!

raise:aSignalSymbolOrErrorClass receiver:someNumber selector:sel arguments:argArray errorString:text 
    "ST-80 compatible signal raising. Provided for PD numeric classes.
     aSignalSymbolOrErrorClass is either an Error-subclass, or
     the selector which is sent to myself, to retrieve the Exception class / Signal."

    <context: #return>

    |msg signalOrException|

    msg := MessageSend
                receiver:someNumber
                selector:sel
                arguments:argArray.

    aSignalSymbolOrErrorClass isSymbol ifTrue:[
        signalOrException := self perform:aSignalSymbolOrErrorClass.
    ] ifFalse:[
        signalOrException := aSignalSymbolOrErrorClass.    "/ assume its an Error-Subclass
    ].

    ^ signalOrException
         raiseRequestWith:msg 
         errorString:text 
         in:thisContext sender

    "
     Number 
        raise:#domainErrorSignal
        receiver:1.0
        selector:#foo 
        errorString:'foo bar test'
    "

    "Modified: / 16.11.2001 / 14:12:09 / cg"
!

raise:aSignalSymbolOrErrorClass receiver:someNumber selector:sel errorString:text 
    "ST-80 compatible signal raising. Provided for PD numeric classes.
     aSignalSymbolOrErrorClass is either an Error-subclass, or
     the selector which is sent to myself, to retrieve the Exception class / Signal."

    <context: #return>

    ^ self
        raise:aSignalSymbolOrErrorClass 
        receiver:someNumber 
        selector:sel 
        arguments:#()
        errorString:text 

    "
     Number 
        raise:#domainErrorSignal
        receiver:1.0
        selector:#foo 
        errorString:'foo bar test'
    "

    "Modified: / 16.11.2001 / 14:13:16 / cg"
! !

!Number class methodsFor:'private'!

readMantissaAndScaleFrom:aStream radix:radix
    "helper for readFrom: -
     return the mantissa (post-decimal-point digits) from the (character-)stream aStream;
     In addition, the scale (number of postDecimalPoint digits) is returned 
     (to support reading fixedPoint numbers).
     No whitespace is skipped.
     Errs if no number is available on aStream."

    |nextChar value factor intMantissa scale highPrecision|

    highPrecision := false.
    value := 0.0.
    factor := 1.0 asLongFloat / radix.
    scale := 0.
    intMantissa := 0.
    nextChar := aStream peekOrNil.
    [nextChar notNil and:[nextChar isDigitRadix:radix]] whileTrue:[
        value := value + (nextChar digitValue * factor).
        intMantissa := (intMantissa * radix) + nextChar digitValue.
        factor := factor / radix.
        scale := scale + 1.
        aStream next.
        nextChar := aStream peekOrNil
    ].

    ^ (Array with:value with:intMantissa with:scale).

    "
     Number readMantissaAndScaleFrom:'234'    readStream radix:10. 
     Number readMantissaAndScaleFrom:'2'      readStream radix:10. 
     Number readMantissaAndScaleFrom:'234567' readStream radix:10. 
     Number readMantissaAndScaleFrom:'234000' readStream radix:10. 
     Number readMantissaAndScaleFrom:'234'    readStream radix:10. 

     Number readMantissaAndScaleFrom:'12345678901234567890' readStream radix:10. 
    "

    "Modified: / 14.4.1998 / 18:47:47 / cg"
!

readMantissaFrom:aStream radix:radix
    "helper for readFrom: -
     return the mantissa (post-decimal-point digits)
     from the (character-)stream aStream;
     No whitespace is skipped.
     Errs if no number available."

    ^ (self readMantissaAndScaleFrom:aStream radix:radix) first

    "
     Number readMantissaFrom:'234'    readStream radix:10.
     Number readMantissaFrom:'2'      readStream radix:10.
     Number readMantissaFrom:'234567' readStream radix:10.
    "

    "Modified: / 14.4.1998 / 18:47:47 / cg"
! !

!Number methodsFor:'Compatibility-Squeak'!

asSmallAngleDegrees
	"Return the receiver normalized to lie within the range (-180, 180)"

	| pos |
	pos _ self \\ 360.
	pos > 180 ifTrue: [pos _ pos - 360].
	^ pos

"#(-500 -300 -150 -5 0 5 150 300 500 1200) collect: [:n | n asSmallAngleDegrees]"
!

closeFrom:aNumber
    "are these two numbers close?"

    | fuzz |

    self isNaN == aNumber isNaN ifFalse: [^ false]. 
    self isInfinite == aNumber isInfinite ifFalse: [^ false].

    fuzz := (self abs max:aNumber abs) * 0.0001. 
    ^ (self - aNumber) abs <= fuzz

    "
     9.0 closeTo: 8.9999     
     9.9 closeTo: 9          
     (9/3) closeTo: 2.9999      
     1 closeTo: 0.9999      
     1 closeTo: 1.0001      
     1 closeTo: 1.001       
     1 closeTo: 0.999       

     0.9999 closeTo: 1      
     1.0001 closeTo: 1      
     1.001 closeTo: 1     
     0.999 closeTo: 1
     Float NaN closeTo:Float NaN
     Float infinity closeTo:Float infinity
    "
!

closeTo:num
    "are these two numbers close?"

    num isNumber ifFalse:[^false].
    ^ num closeFrom:self

    "
     1 closeTo:1.0000000001
     1 closeTo:1.001
    "

    "Created: / 5.11.2001 / 18:07:26 / cg"
!

newTileMorphRepresentative
	^ TileMorph new addArrows; setLiteral: self; addSuffixIfCan
!

stringForReadout
    ^ self rounded printString
! !

!Number methodsFor:'Compatibility-VW'!

** aNumber
    ^ self raisedTo:aNumber
! !

!Number methodsFor:'coercing'!

retry: aSymbol coercing: aNumber
    "Arithmetic represented by the symbol, aSymbol,
    could not be performed with the receiver and the argument,
    aNumber, because of the differences in representation.  Coerce either
    the receiver or the argument, depending on which has higher generality, and
    try again.  If the symbol is the equals sign, answer false if the argument
    is not a Number.  If the generalities are the same, create an error message."

    |myGenerality otherGenerality|

    (aSymbol == #=) ifTrue:[
        (aNumber respondsTo:#generality) ifFalse:[^ false]
    ] ifFalse:[
        (aNumber respondsTo:#generality) ifFalse:[
            self error:'retry:coercing: argument is not a number'.
            ^ self
        ]
    ].
    myGenerality := self generality.
    otherGenerality := aNumber generality.
    (myGenerality > otherGenerality) ifTrue:[
        ^ self perform:aSymbol with:(self coerce:aNumber)
    ].
    (myGenerality < otherGenerality) ifTrue:[
        (aNumber isNumber and:[aNumber isInfinite]) ifTrue: [
            ^ aNumber retryReverseOf:aSymbol with:self
        ].
        ^ (aNumber coerce:self) perform:aSymbol with:aNumber
    ].
    self error:'retry:coercing: oops - same generality'
! !

!Number methodsFor:'coercing & converting'!

coerce:aNumber
    "return aNumber converted into receivers type"

    ^ self subclassResponsibility
!

generality
    "return the generality value - see ArithmeticValue>>retry:coercing:"

    ^ 40
! !

!Number methodsFor:'converting'!

% aNumber 
    "Return a complex number with the receiver as the real part and 
     aNumber as the imaginary part"

    ^ Complex real:self imaginary:aNumber

    "Modified: / 9.7.1998 / 10:18:12 / cg"
!

@ aNumber
    "return a Point with the receiver as x-coordinate and the argument
     as y-coordinate"

%{  /* NOCONTEXT */

    /*
     * I cannot tell if this special code is worth anything
     */
    if (__CanDoQuickNew(sizeof(struct __Point))) {      /* OBJECT ALLOCATION */
	OBJ newPoint;
	int spc;

	__qCheckedAlignedNew(newPoint, sizeof(struct __Point));
	__InstPtr(newPoint)->o_class = @global(Point);
	__PointInstPtr(newPoint)->p_x = self;
	__PointInstPtr(newPoint)->p_y = aNumber;
	if (! __bothSmallInteger(self, aNumber)) {
	    spc = __qSpace(newPoint);
	    __STORE_SPC(newPoint, aNumber, spc);
	    __STORE_SPC(newPoint, self, spc);
	}
	RETURN ( newPoint );
    }
%}
.
    ^ Point x:self y:aNumber
!

asComplex
    "Return a complex number with the receiver as the real part and 
     zero as the imaginary part"

    ^ Complex real:self

    "Modified: / 9.7.1998 / 10:18:16 / cg"
!

asNumber

    ^ self.
!

asPoint
    "return a new Point with the receiver as all coordinates;  
     often used to supply the same value in two dimensions, as with 
     symmetrical gridding or scaling."

%{  /* NOCONTEXT */

    if (__CanDoQuickNew(sizeof(struct __Point))) {      /* OBJECT ALLOCATION */
	OBJ newPoint;

	__qCheckedAlignedNew(newPoint, sizeof(struct __Point));
	__InstPtr(newPoint)->o_class = @global(Point);
	__PointInstPtr(newPoint)->p_x = self;
	__PointInstPtr(newPoint)->p_y = self;
	__STORE(newPoint, self);
	RETURN ( newPoint );
    }
%}.
    ^ Point x:self y:self
!

decodeAsLiteralArray
    "given a literalEncoding in the receiver,
     create & return the corresponding object.
     The inverse operation to #literalArrayEncoding."

    ^ self

    "Created: 25.2.1997 / 19:17:06 / cg"
    "Modified: 25.2.1997 / 19:17:42 / cg"
!

degreesToRadians
    "interpreting the receiver as radians, return the degrees"

    ^ (self * (Float pi)) / 180.0

    "
     180 degreesToRadians
     Float pi radiansToDegrees
    "
!

literalArrayEncoding
    "encode myself as an array literal, from which a copy of the receiver
     can be reconstructed with #decodeAsLiteralArray."

    ^ self

    "Modified: 1.9.1995 / 02:25:26 / claus"
    "Modified: 22.4.1996 / 13:00:27 / cg"
!

radiansToDegrees
    "interpreting the receiver as degrees, return the radians"

    ^ (self * 180.0) / (Float pi)

    "
     180 degreesToRadians     
     Float pi radiansToDegrees
    "
!

withScale:newScale
    "return a fixedPoint number representing the same valie as the receiver, 
     with newScale number of post-decimal digits"

    ^ self asFixedPoint:newScale

    "
     1234 withScale:2 
     1234.1 withScale:2 
     1234.12 withScale:2 
     1234.123 withScale:2 
     (1/7) withScale:2
    "
! !

!Number methodsFor:'intervals'!

downTo:stop
    "return an interval from receiver down to the argument, incrementing by -1"

    ^ self to:stop by:-1

    "
     (10 downTo:1) do:[:i | Transcript showCR:i].
    "
!

to:stop
    "return an interval from receiver up to the argument, incrementing by 1"

    ^ Interval from:self to:stop
!

to:stop by:step
    "return an interval from receiver up to the argument, incrementing by step"

    ^ Interval from:self to:stop by:step
!

to:stop byFactor:factor
    "return a geometric series from receiver up to the argument;
     elements have a constant factor in between"

    ^ GeometricSeries from:self to:stop byFactor:factor

    "
     (1 to:256 byFactor:2)
     (256 to:1 byFactor:1/2)     
    "
! !

!Number methodsFor:'iteration'!

timesRepeat:aBlock
    "evaluate the argument, aBlock self times"

    |count|

    count := self.
    [count > 0] whileTrue:[
	aBlock value.
	count := count - 1
    ]
! !

!Number methodsFor:'mathematical functions'!

conjugated
    "Return the complex conjugate of this Number."

    ^ self

    "Modified: / 9.7.1998 / 10:17:31 / cg"
!

imaginary
    "Return the imaginary part of this Number."

    ^ 0

    "Modified: / 9.7.1998 / 10:17:24 / cg"
!

real
    "Return the real part of this Number."

    ^ self

    "Modified: / 9.7.1998 / 10:17:17 / cg"
!

timesTwoPower:anInteger
    "Return the receiver multiplied by 2.0 raised to the power of the argument.
     For protocol completeness wrt. Squeak and ST80."

    ^ self * (2.0 raisedToInteger:anInteger)

    "
     123 timesTwoPower:0  
     123 timesTwoPower:1  
     123 timesTwoPower:2  
     123 timesTwoPower:3  
    "
! !

!Number methodsFor:'printing & storing'!

printOn:aStream paddedWith:padCharacter to:size base:radix
    |s|

    s := self printStringRadix:radix.
    s printOn: aStream leftPaddedTo:size with: padCharacter


!

storeOn:aStream
    "append a string for storing the receiver onto the argument,
     aStream - since numbers are literals,they store as they print."

    ^ self printOn:aStream
!

storeString
    "return a string for storing 
     - since numbers are literals, they store as they print."

    ^ self printString
! !

!Number methodsFor:'testing'!

isDivisibleBy:aNumber
    "return true, if the receiver can be divided by the argument, aNumber without a remainder.
     Notice, that the result is only worth trusting, if the receiver is an integer."

    aNumber = 0 ifTrue: [^ false].
    aNumber isInteger ifFalse: [^ false].
    ^ (self \\ aNumber) = 0

    "
     3 isDivisibleBy:2     
     4 isDivisibleBy:2
     4.0 isDivisibleBy:2   
     4.5 isDivisibleBy:4.5 
     4.5 isDivisibleBy:1.0 
    "
!

isFinite
	^true
!

isInfinite
	^false
!

isNaN
    "return true, if the receiver is an invalid float (NaN - not a number)."

    ^ false

    "Created: / 5.11.2001 / 18:07:26 / cg"
!

isNumber
    "return true, if the receiver is a kind of number"

    ^ true
!

isReal
    "return true, if the receiver is some kind of real number (as opposed to a complex);
     true is returned here - the method is redefined from Object."

    ^ true
!

isZero
    "return true, if the receiver is zero"

    ^ self = 0

    "Modified: 18.7.1996 / 12:40:49 / cg"
! !

!Number methodsFor:'tracing'!

traceInto:aRequestor level:level from:referrer
    "double dispatch into tracer, passing my type implicitely in the selector"

    ^ aRequestor traceNumber:self level:level from:referrer


! !

!Number methodsFor:'truncation & rounding'!

detentBy: detent atMultiplesOf: grid snap: snap
    "Map all values that are within detent/2 of any multiple of grid 
     to that multiple.  
     Otherwise, if snap is true, return self, meaning that the values 
     in the dead zone will never be returned.  
     If snap is false, then expand the range between dead zones
     so that it covers the range between multiples of the grid, 
     and scale the value by that factor."

    | r1 r2 |

    r1 := self roundTo: grid.                    "Nearest multiple of grid"
    (self roundTo: detent) = r1 ifTrue: [^ r1].  "Snap to that multiple..."
    snap ifTrue: [^ self].                       "...or return self"

    r2 := self < r1                               "Nearest end of dead zone"
	    ifTrue: [r1 - (detent asFloat/2)]
	    ifFalse: [r1 + (detent asFloat/2)].

    "Scale values between dead zones to fill range between multiples"
    ^ r1 + ((self - r2) * grid asFloat / (grid - detent))

    "
     (170 to: 190 by: 2) collect: [:a | a detentBy: 10 atMultiplesOf: 90 snap: true]         
     (170 to: 190 by: 2) collect: [:a | a detentBy: 10 atMultiplesOf: 90 snap: false]
     (3.9 to: 4.1 by: 0.02) collect: [:a | a detentBy: 0.1 atMultiplesOf: 1.0 snap: true]    
     (-3.9 to: -4.1 by: -0.02) collect: [:a | a detentBy: 0.1 atMultiplesOf: 1.0 snap: false]
    "
!

fractionPart
    "return a float with value from digits after the decimal point.
     i.e. the receiver minus its truncated value,
     such that (self truncated + self fractionPart) = self"

    ^ self - self truncated

    "
     1234.56789 fractionPart
     1.2345e6 fractionPart  

     1.6 asLongFloat fractionPart + 1.6 asLongFloat truncated    
     -1.6 asLongFloat fractionPart + -1.6 asLongFloat truncated    
    "

    "Modified: / 4.11.1996 / 20:26:54 / cg"
    "Created: / 28.10.1998 / 17:14:40 / cg"
!

integerPart
    "return a float with value from digits before the decimal point
     (i.e. the truncated value)"

    ^ self truncated asFloat

    "
     1234.56789 integerPart 
     1.2345e6 integerPart   
     12.5 integerPart 
     -12.5 integerPart 
     (5/3) integerPart  
     (-5/3) integerPart 
     (5/3) truncated  
     (-5/3) truncated  
    "

    "Created: / 28.10.1998 / 17:14:56 / cg"
    "Modified: / 5.11.2001 / 17:54:22 / cg"
! !

!Number class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libbasic/Number.st,v 1.83 2003-06-17 11:50:24 cg Exp $'
! !