--- a/ArithmeticValue.st Tue Jul 01 21:44:05 2003 +0200
+++ b/ArithmeticValue.st Wed Jul 02 11:34:42 2003 +0200
@@ -965,98 +965,6 @@
"
!
-raisedTo:aNumber
- "return the receiver raised to aNumber"
-
- aNumber = 0 ifTrue:[^ 1].
- aNumber = 1 ifTrue:[^ self].
- aNumber isInteger ifTrue:[
- ^ self raisedToInteger:aNumber
- ].
- ^ self asFloat raisedTo:aNumber
-
- "
- 2 raisedTo: 4
- 10 raisedTo: 4
- "
-!
-
-raisedToInteger:exp
- "return the receiver raised to exp"
-
- |result e t|
-
- "use the addition chaining algorithm,
- which is much faster for big exp-arguments"
-
- result := 1.
- t := self.
- exp < 0 ifTrue:[
- e := exp negated.
- ] ifFalse:[
- e := exp.
- ].
-
- [e ~~ 0] whileTrue:[
- [(e bitAnd:1) == 0] whileTrue:[
- e := e bitShift:-1.
- t := t * t.
- ].
- e := e - 1.
- result := result * t.
- ].
-
- (exp < 0) ifTrue:[
- ^ 1 / result
- ].
-
- ^ result
-
-
- "
- (2 raisedToInteger:216)
- (2 raisedTo:216)
--> 105312291668557186697918027683670432318895095400549111254310977536
-
- (2 raisedToInteger:216) asFloat
- (2 raisedTo:216) asFloat
--> 1.05312E+65
-
- (2 raisedToInteger:500)
- (2 raisedTo:500)
--> 3273390607896141870013189696827599152216642046043064789483291368096133796404674554883270092325904157150886684127560071009217256545885393053328527589376
- 2 raisedToInteger:10
--> 1024
- -2 raisedToInteger:10
--> 1024
- -2 raisedToInteger:9
--> -512
- 10 raisedToInteger:-10
--> (1/10000000000)
- 2 raisedToInteger:0
--> 1
- 2 raisedToInteger:-1
--> (1/2)
-
- Time millisecondsToRun:[
- 10000 timesRepeat:[
- (2 raisedToInteger:500)
- ]
- ]
-
- Time millisecondsToRun:[
- |bigNum|
- bigNum := 2 raisedToInteger:500.
- 10 timesRepeat:[
- (bigNum raisedToInteger:500)
- ]
- ]
- "
-
- "Created: / 27.4.1999 / 15:19:22 / stefan"
- "Modified: / 27.4.1999 / 16:16:11 / stefan"
-!
-
squared
"return receiver * receiver"
@@ -1220,7 +1128,7 @@
!ArithmeticValue class methodsFor:'documentation'!
version
- ^ '$Header: /cvs/stx/stx/libbasic/ArithmeticValue.st,v 1.58 2003-06-21 10:25:46 cg Exp $'
+ ^ '$Header: /cvs/stx/stx/libbasic/ArithmeticValue.st,v 1.59 2003-07-02 09:34:34 cg Exp $'
! !
ArithmeticValue initialize!
--- a/Number.st Tue Jul 01 21:44:05 2003 +0200
+++ b/Number.st Wed Jul 02 11:34:42 2003 +0200
@@ -750,6 +750,98 @@
^ self ln / aNumber ln
!
+raisedTo:aNumber
+ "return the receiver raised to aNumber"
+
+ aNumber = 0 ifTrue:[^ 1].
+ aNumber = 1 ifTrue:[^ self].
+ aNumber isInteger ifTrue:[
+ ^ self raisedToInteger:aNumber
+ ].
+ ^ self asFloat raisedTo:aNumber
+
+ "
+ 2 raisedTo: 4
+ 10 raisedTo: 4
+ "
+!
+
+raisedToInteger:exp
+ "return the receiver raised to exp"
+
+ |result e t|
+
+ "use the addition chaining algorithm,
+ which is much faster for big exp-arguments"
+
+ result := 1.
+ t := self.
+ exp < 0 ifTrue:[
+ e := exp negated.
+ ] ifFalse:[
+ e := exp.
+ ].
+
+ [e ~~ 0] whileTrue:[
+ [(e bitAnd:1) == 0] whileTrue:[
+ e := e bitShift:-1.
+ t := t * t.
+ ].
+ e := e - 1.
+ result := result * t.
+ ].
+
+ (exp < 0) ifTrue:[
+ ^ 1 / result
+ ].
+
+ ^ result
+
+
+ "
+ (2 raisedToInteger:216)
+ (2 raisedTo:216)
+-> 105312291668557186697918027683670432318895095400549111254310977536
+
+ (2 raisedToInteger:216) asFloat
+ (2 raisedTo:216) asFloat
+-> 1.05312E+65
+
+ (2 raisedToInteger:500)
+ (2 raisedTo:500)
+-> 3273390607896141870013189696827599152216642046043064789483291368096133796404674554883270092325904157150886684127560071009217256545885393053328527589376
+ 2 raisedToInteger:10
+-> 1024
+ -2 raisedToInteger:10
+-> 1024
+ -2 raisedToInteger:9
+-> -512
+ 10 raisedToInteger:-10
+-> (1/10000000000)
+ 2 raisedToInteger:0
+-> 1
+ 2 raisedToInteger:-1
+-> (1/2)
+
+ Time millisecondsToRun:[
+ 10000 timesRepeat:[
+ (2 raisedToInteger:500)
+ ]
+ ]
+
+ Time millisecondsToRun:[
+ |bigNum|
+ bigNum := 2 raisedToInteger:500.
+ 10 timesRepeat:[
+ (bigNum raisedToInteger:500)
+ ]
+ ]
+ "
+
+ "Created: / 27.4.1999 / 15:19:22 / stefan"
+ "Modified: / 27.4.1999 / 16:16:11 / stefan"
+!
+
real
"Return the real part of this Number."
@@ -1613,5 +1705,5 @@
!Number class methodsFor:'documentation'!
version
- ^ '$Header: /cvs/stx/stx/libbasic/Number.st,v 1.86 2003-06-26 14:39:23 cg Exp $'
+ ^ '$Header: /cvs/stx/stx/libbasic/Number.st,v 1.87 2003-07-02 09:34:42 cg Exp $'
! !