Complex numbers

Pep Bujosa shared this question 11 years ago
Answered

Another possible bug:


I write to a cell in the spreadsheet a complex number, such as 2 + 3i. In the cell appears with the letter "i" with an tilde (2 + 3í). In addition, I can not move the point to be represented graphically


GeoGebra Java 3.9.248 1.0.25


Pep Bujosa

Comments (11)

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Doing a search of the forum will show you that your concern that is being worked on. It does not appear to be a simple fix. IMHO, I believe that the developers are working on this with all diligence possible. Patience and additional reporting of problems in this or any other area is appreciated.


Tony

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Hi Pep

a workaround, write first in A1 = (2,3)

Then right clic on the point A1 generated

in advanced properties and algebra choose now complex number


https://ggbm.at/549177


Daniel

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Hi Daniel


Yes! This solution was already tried, but why not work as before version 3? Why get the letter "í " (with tilde)?


Thanks

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Hi Pep

Oh yes !!

You're right, it worked correctly in version 3 and it does not work in the 4.

Is it a bug ??? or not

Daniel

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I write to a cell in the spreadsheet a complex number, such as 2 + 3i. In the cell appears with the letter "i" with an tilde (2 + 3í).


We've chosen a special symbol for sqrt(-1) in GeoGebra 4.0. You can type it with <Alt>i


In addition, I can not move the point to be represented graphically


Thanks, fixed for next release

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CAS display still has problems with complex numbers.


Tonyf17c55cc2b6ad2ca8ea22ae58749384b

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hi


I asked for the same problem with "3x+2" for example


Laurent

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I don't know if this is relevant to the tilde issue, but:


Once I have written t.ex "=2 + 3ί" either in a cell in the spreadsheet or just any other definition, I can't move it on graphics view.


3.9.248.0

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3.9.249.0 online

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The LaTex symbol for a space \; is still there. I thought that had be fixed earlier.


Tony

    GeoGebra 3.9.249.0 Webstart (26 May 2011)

    Java: 1.6.0_20

    OS: Windows XP

    Architecture: x86

    Heap: 494MB

    CAS: MathPiper .81f


    May 26, 2011 8:07:05 PM

    STDOUT: current views:


    May 26, 2011 8:07:05 PM

    STDOUT: geogebra.c.am[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=java.awt.Dimension[width=20,height=20],preferredSize=]


    May 26, 2011 8:07:05 PM

    STDOUT:


    May 26, 2011 8:07:05 PM

    STDERR: XXXXXXXXX Number of registered views = 1

    May 26, 2011 8:07:05 PM

    STDOUT: class geogebra.c.am

    May 26, 2011 8:07:08 PM

    STDOUT: current views:


    May 26, 2011 8:07:08 PM

    STDOUT: geogebra.c.am[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=java.awt.Dimension[width=20,height=20],preferredSize=]


    May 26, 2011 8:07:08 PM

    STDOUT: geogebra.gui.j.a.g[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=javax.swing.border.EmptyBorder@2da5a6,flags=16777576,maximumSize=,minimumSize=,preferredSize=,editable=true,invokesStopCellEditing=true,largeModel=true,rootVisible=false,rowHeight=-1,scrollsOnExpand=true,showsRootHandles=false,toggleClickCount=1,visibleRowCount=20]


    May 26, 2011 8:07:08 PM

    STDOUT:


    May 26, 2011 8:07:08 PM

    STDERR: XXXXXXXXX Number of registered views = 0

    May 26, 2011 8:07:08 PM

    STDOUT: 16 ic height: 16

    May 26, 2011 8:07:09 PM

    STDOUT: *** Message from [geogebra.j.g.b]

    May 26, 2011 8:07:09 PM

    STDOUT:

    May 26, 2011 8:07:09 PM

    STDOUT: Image /gui/toolbar/images/mode_functioninspector_32.gif not found

    May 26, 2011 8:07:16 PM

    STDOUT: current views:


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.c.am[,0,0,700x648,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=java.awt.Dimension[width=20,height=20],preferredSize=java.awt.Dimension[width=696,height=662]]


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.gui.j.a.g[,0,0,253x648,alignmentX=0.0,alignmentY=0.0,border=javax.swing.border.EmptyBorder@2da5a6,flags=16777576,maximumSize=,minimumSize=,preferredSize=,editable=true,invokesStopCellEditing=true,largeModel=true,rootVisible=false,rowHeight=-1,scrollsOnExpand=true,showsRootHandles=false,toggleClickCount=1,visibleRowCount=20]


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.b.b.r[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minimumSize=,preferredSize=]


    May 26, 2011 8:07:16 PM

    STDOUT:


    May 26, 2011 8:07:16 PM

    STDERR: XXXXXXXXX Number of registered views = 3

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.c.am

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.gui.j.a.g

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.b.b.r

    May 26, 2011 8:07:16 PM

    STDOUT: current views:


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.c.am[,0,0,700x648,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=java.awt.Dimension[width=20,height=20],preferredSize=java.awt.Dimension[width=696,height=662]]


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.gui.j.a.g[,0,0,253x648,alignmentX=0.0,alignmentY=0.0,border=javax.swing.border.EmptyBorder@2da5a6,flags=16777576,maximumSize=,minimumSize=,preferredSize=,editable=true,invokesStopCellEditing=true,largeModel=true,rootVisible=false,rowHeight=-1,scrollsOnExpand=true,showsRootHandles=false,toggleClickCount=1,visibleRowCount=20]


    May 26, 2011 8:07:16 PM

    STDOUT: geogebra.b.b.r[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minimumSize=,preferredSize=]


    May 26, 2011 8:07:16 PM

    STDOUT:


    May 26, 2011 8:07:16 PM

    STDERR: XXXXXXXXX Number of registered views = 3

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.c.am

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.gui.j.a.g

    May 26, 2011 8:07:16 PM

    STDOUT: class geogebra.b.b.r

    May 26, 2011 8:07:16 PM

    STDOUT: *** Message from [geogebra.gui.h.f.a]

    May 26, 2011 8:07:16 PM

    STDOUT:

    May 26, 2011 8:07:16 PM

    STDOUT: invalid toolbar string: null

    May 26, 2011 8:07:16 PM

    STDOUT: *** Message from [geogebra.gui.f.c.c]

    May 26, 2011 8:07:16 PM

    STDOUT:

    [DockPanel,id=2,toolbar=null,visible=true,inframe=false]

    [DockPanel,id=1,toolbar=null,visible=true,inframe=false]


    May 26, 2011 8:07:16 PM

    STDOUT: *** END Message.

    May 26, 2011 8:07:23 PM

    STDOUT: eval with MathPiper: ExpandBrackets(Simplify(Rationalize(3 * i)))

    May 26, 2011 8:07:23 PM

    STDOUT: result: 3*i

    May 26, 2011 8:07:23 PM

    STDOUT: ggbString: 3.00000000000000i

    May 26, 2011 8:07:35 PM

    STDOUT: *** Message from [geogebra.gui.ac.keyReleased]

    May 26, 2011 8:07:35 PM

    STDOUT:

    May 26, 2011 8:07:35 PM

    STDOUT: Key pressed \u0069 i

    May 26, 2011 8:07:37 PM

    STDOUT: eval with MathPiper: ExpandBrackets(Simplify(Rationalize(3 * ?)))

    May 26, 2011 8:07:37 PM

    STDOUT: result: 3*?

    May 26, 2011 8:07:37 PM

    STDOUT: ggbString: 3.00000000000000?

    May 26, 2011 8:07:59 PM

    STDOUT: *** Message from [geogebra.gui.ac.keyReleased]

    May 26, 2011 8:07:59 PM

    STDOUT:

    May 26, 2011 8:07:59 PM

    STDOUT: Key pressed \u0069 i

    May 26, 2011 8:08:00 PM

    STDOUT: eval with MathPiper: ExpandBrackets(Simplify(Rationalize((3) + (4 * ?))))

    May 26, 2011 8:08:00 PM

    STDOUT: result: 4*?+3

    May 26, 2011 8:08:00 PM

    STDOUT: ggbString: 4.00000000000000? + 3.00000000000000

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    <window width="966" height="802" /><perspectives>

    <perspective id="tmp">

    <panes>

    <pane location="" divider="0.2619047619047619" orientation="1" />

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    <views>

    <view id="4" toolbar="0 || 66 || 2020 || 2021 || 2022 || 2001 , 2003 , 2002 , 2004 , 2005" visible="false" inframe="false" stylebar="false" location="1,1" size="200" window="0,0,400,400" />

    <view id="1" visible="true" inframe="false" stylebar="false" location="1" size="700" window="0,0,400,400" />

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    </gui>

    <euclidianView>

    <size width="700" height="648"/>

    <coordSystem xZero="290.5631067961165" yZero="315.0" scale="67.57281553398057" yscale="67.57281553398057"/>

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    <axis id="0" show="true" label="" unitLabel="°" tickStyle="1" showNumbers="true" axisCross="0.0" positiveAxis="false"/>

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    <construction title="" author="" date="">

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    <casSession>

    <cellPair>

    <inputCell>

    <expression value="3i" eval="3 * i" />

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    <outputCell>

    <expression value="3 * i"/>

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    </cellPair>

    <cellPair>

    <inputCell>

    <expression value="3ί" eval="3 * ί" />

    </inputCell>

    <outputCell>

    <expression value="3 * ί"/>

    </outputCell>

    </cellPair>

    <cellPair>

    <inputCell>

    <expression value="3 + 4 ί" eval="3 + 4 * ί" />

    </inputCell>

    <outputCell>

    <expression value="4 * ί + 3"/>

    </outputCell>

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    <cellPair>

    </cellPair>

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    <?xml version="1.0" encoding="utf-8"?>

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    <show algebraView="true" spreadsheetView="false" auxiliaryObjects="false" algebraInput="true" cmdList="true"/>

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90e13a6a9fc62d992265238e75f85ffb

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Hi Murkle.


Now it works perfectly. I can move the points generated by complex numbers.


Thank you.


Pep Bujosa

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