[Maxima] ibase and obase
Richard Fateman
fateman at cs.berkeley.edu
Sun Jun 18 14:01:44 CDT 2006
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6E looks like a floating point number. Like 6.0e1 is 60.0.
It is probably unintended. I think the way to fix it is to simply
forbid ibase to be set to more than decimal 10.
_____
From: maxima-admin at math.utexas.edu [mailto:maxima-admin at math.utexas.edu] On
Behalf Of van Nek
Sent: Sunday, June 18, 2006 11:54 AM
To: Maxima at math.utexas.edu
Subject: [Maxima] ibase and obase
Hello,
is this a bug or intended?
(%i1) [ibase:10,obase:16]$
(%i2) 100;
(%o2) 64
(%i3) 111;
(%o3) 6F
(%i4) [ibase:16,obase:10]$
(%i5) 64;
(%o5) 100
(%i6) 6F;Incorrect syntax: F is not an infix operator
6F;
^
(%i6) 6E;
Incomplete number. Missing exponent?
-- an error. Quitting. To debug this try debugmode(true);
Documentation:
When ibase is greater than 10, the numerals comprise the decimal numerals 0
through 9 plus capital letters of the alphabet A, B, C, ..., as needed.
This tells me that 6F and 6E should work, or do I misunderstand the
documentation?
Volker
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>6E looks like a floating =
point number.
Like 6.0e1 is 60.0.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>It is probably unintended. I =
think
the way to fix it is to simply<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>forbid ibase to be set to more =
than decimal
10.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
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face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>
<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>
</span></font></div>
<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'>
maxima-admin at math.utexas.edu [mailto:maxima-admin at math.utexas.edu] =
<b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>van Nek<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Sunday, June 18, =
2006 11:54
AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
Maxima at math.utexas.edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [Maxima] ibase =
and obase</span></font><o:p></o:p></p>
</div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>Hello,</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>is this a bug or intended?</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i1) [ibase:10,obase:16]$</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i2) 100;</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%o2)
&=
nbsp; &n=
bsp; &nb=
sp;
64</span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i3) 111;</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%o3)
&=
nbsp; &n=
bsp; &nb=
sp;
6F</span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i4) [ibase:16,obase:10]$</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i5) 64;</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%o5)
&=
nbsp; &n=
bsp; &nb=
sp;
100</span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i6) 6F;Incorrect syntax: F is not an infix =
operator</span></font><span
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>6F;</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>^</span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>(%i6) 6E;</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>Incomplete number. Missing =
exponent?</span></font><span
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>-- an error. Quitting. To debug this try
debugmode(true);</span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>Documentation: </span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>When ibase is greater than 10, the numerals comprise =
the
decimal numerals 0 through 9 plus capital letters of the alphabet A, B, =
C, ...,
as needed. </span></font><span lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>This tells me that 6F and 6E should work, or do I
misunderstand the documentation?</span></font><span =
lang=3DEN><o:p></o:p></span></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
lang=3DEN
style=3D'font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN =
style=3D'font-size:10.0pt;
font-family:Arial'>Volker</span></font><span =
lang=3DEN><o:p></o:p></span></p>
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