#DOCUMENTATION by cg
authorClaus Gittinger <cg@exept.de>
Mon, 10 Jun 2019 21:24:01 +0200
changeset 24322 b70e88c857b5
parent 24321 c1488d3bdbdc
child 24323 e42ad2030cf5
#DOCUMENTATION by cg class: Number added: #epsilonForCloseTo class: Number class category of: #epsilon #epsilonForCloseTo
Number.st
--- a/Number.st	Mon Jun 10 21:23:25 2019 +0200
+++ b/Number.st	Mon Jun 10 21:24:01 2019 +0200
@@ -1,5 +1,3 @@
-"{ Encoding: utf8 }"
-
 "
  COPYRIGHT (c) 1988 by Claus Gittinger
 	      All Rights Reserved
@@ -249,7 +247,7 @@
      it allows for prefixed + and also allows missing fractional part after eE.
      It supports 0x, 0o and 0b prefixes (hex, octal and binary)
      and the regular Smalltalk radix prefix xr.
-     If also allows for strings like '1.0×1015' to be read (as 1E+15).
+     If also allows for strings like '1.0×1015' to be read (as 1E+15).
 
      It also allows garbage after the number - i.e. it reads what it can.
      See #fromString: , which is more strict and does not allow garbage at the end.
@@ -438,7 +436,7 @@
                                     scale:(scale ? mantissaAndScale third).
                     ].
                 ] ifFalse:[
-                    (nextChar == $×) ifTrue:[
+                    (nextChar == $×) ifTrue:[
                         (((nextChar := str nextPeek) == $1)
                           and:[ ((nextChar := str nextPeek) == $0) ]
                         ) ifTrue:[
@@ -740,28 +738,6 @@
     "Created: / 06-06-2019 / 16:58:50 / Claus Gittinger"
 !
 
-epsilon
-    "return the maximum relative spacing of instances of mySelf
-     (i.e. the value-delta of the least significant bit)"
-
-     ^ self subclassResponsibility
-!
-
-epsilonForCloseTo
-    "return the epsilon used in the closeTo: comparison.
-     (useful would be something like self epsilon or epsilon*10,
-      but for Squeak compatibility.... - sigh)"
-
-    ^ 0.0001
-
-    "
-     Float epsilon
-     ShortFloat epsilon
-     Float epsilon10
-     ShortFloat epsilon10
-    "
-!
-
 i
     "return the imaginary unit i"
 
@@ -985,6 +961,7 @@
     "
 ! !
 
+
 !Number class methodsFor:'private'!
 
 readMantissaAndScaleFrom:aStream radix:radix
@@ -1073,6 +1050,28 @@
 
 !Number class methodsFor:'queries'!
 
+epsilon
+    "return the maximum relative spacing of instances of mySelf
+     (i.e. the value-delta of the least significant bit)"
+
+     ^ self subclassResponsibility
+!
+
+epsilonForCloseTo
+    "return the epsilon used in the closeTo: comparison.
+     (useful would be something like self epsilon or epsilon*10,
+      but for Squeak compatibility.... - sigh)"
+
+    ^ 0.0001
+
+    "
+     Float epsilon
+     ShortFloat epsilon
+     Float epsilon10
+     ShortFloat epsilon10
+    "
+!
+
 isAbstract
     "Return if this class is an abstract class.
      True is returned for Number here; false for subclasses.
@@ -1081,6 +1080,7 @@
     ^ self == Number
 ! !
 
+
 !Number methodsFor:'Compatibility-Squeak'!
 
 asSmallAngleDegrees
@@ -1220,6 +1220,19 @@
     "Modified: / 02-08-2010 / 13:27:22 / cg"
 !
 
+epsilonForCloseTo
+    "return the epsilon used in the closeTo: comparison."
+
+    ^ self class epsilonForCloseTo
+
+    "
+     1.0 epsilon
+     10 asShortFloat epsilon
+    "
+
+    "Created: / 10-06-2019 / 21:20:18 / Claus Gittinger"
+!
+
 isAlmostEqualTo:aNumber nEpsilon:nE
     "return true, if the argument, aNumber represents almost the same numeric value
      as the receiver, false otherwise.
@@ -1987,6 +2000,10 @@
     ^ self
 ! !
 
+
+
+
+
 !Number methodsFor:'printing & storing'!
 
 displayOn:aGCOrStream
@@ -3629,6 +3646,7 @@
     "
 ! !
 
+
 !Number class methodsFor:'documentation'!
 
 version