### [Solved] Polar Form complex numbers

Posted:

**Sat Mar 26, 2016 8:29 am**I can´t write my complex number in polar form • 1+i= sqrt{2} │_%pi over 4___ how to write argument with " │____ " symbol?? Thaks!!

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Posted: **Sat Mar 26, 2016 8:29 am**

I can´t write my complex number in polar form • 1+i= sqrt{2} │_%pi over 4___ how to write argument with " │____ " symbol?? Thaks!!

Posted: **Sat Mar 26, 2016 1:50 pm**

Greetings and welcome to the community forum!

I'm not sure exactly what you want. Maybe something like this:

1+i= sqrt{2} left lline underline{%pi over 4} right none

I'm not sure exactly what you want. Maybe something like this:

1+i= sqrt{2} left lline underline{%pi over 4} right none

Posted: **Sat Mar 26, 2016 7:58 pm**

Hi, and welcome to the forum. Thanks for the interesting question.

If this solved your problem please go to your first post use the Edit button and add [Solved] to the start of the title. You can select the green checkmark icon at the same time.

The text above was written with the Math component of Open Office. I can't attach the file because the forum, for some bizarre reason, doesn't allow uploads of .odf files. Here's the text used to create the Math formula.SergiusSilus wrote:I can´t write my complex number in polar form • 1+i= sqrt{2} │_%pi over 4___ how to write argument with " │____ " symbol??

"I've been a mathematician for 40 years." newline

"I have never seen notation like"~ sqrt{2} left lline underline{%pi over 4} right none newline

"though I would believe that's what your textbook uses." newline newline

"The usual ways to write" 1+i "in polar form are:" newline

sqrt{2} ( cos{%pi over 4} + i sin{%pi over 4} ) ~~~~"or"~~~~ sqrt{2} `func e^{i %pi over 4} newline

"I think engineers sometimes use:"~ sqrt{2} ~underline{size 20 "/"}~ %pi over 4

If this solved your problem please go to your first post use the Edit button and add [Solved] to the start of the title. You can select the green checkmark icon at the same time.

Posted: **Sat Mar 26, 2016 8:37 pm**

The Unicode Angle character is predefined in the Symbol Catalog.

Posted: **Sat Mar 26, 2016 8:50 pm**

MrProgrammer wrote:The text above was written with the Math component of Open Office. I can't attach the file because the forum, for some bizarre reason, doesn't allow uploads of .odf files.

Because we had never had to upload such file in fact. I just allowed it so it should be fine for the next one.

Note that you can upload an ODT file, including the formula.

Posted: **Sat Mar 26, 2016 8:59 pm**

Thank you.Hagar Delest wrote:Because we had never had to upload such file in fact. I just allowed it so it should be fine for the next one.

Actually I may have done that in the past but forgot about that solution when posting today.Hagar Delest wrote:Note that you can upload an ODT file, including the formula.

The Unicode charts show what U+2220 is supposed to look like, and that seems to be different than the character produced by %angle, though %angle is an easy solution and may serve the OP's need adequately.Daiwe01 wrote:The Unicode value is U+2220.

On my system, %angle displays something similar to U+2222, pictured above. The exact shape of the character depends on the font.

Posted: **Sat Mar 26, 2016 9:34 pm**

Daiwe01 wrote:The Unicode Angle character is predefined in the Symbol Catalog.

Oops. I should have verified the definition in the Catalog.

The character defined in the Symbol Catalog is actually U+2222 (Unicode name Spherical Angle).

Options now are change to U+2220 (Unicode name Angle) or add a new symbol for that character. How to add or modify Symbol Catalog characters

Posted: **Sat Mar 26, 2016 9:49 pm**

thanks guys!!. now I use the right angle character!.

this mathematical expression is teaching at the University for pedagogic purpose. This is not a very academic form, but it is used in some chairs yet. I prefer uses subscript but my note-taking should reflect the class. however, in spanish speaking places, a common notation is the right angle character. Thanks again!!

this mathematical expression is teaching at the University for pedagogic purpose. This is not a very academic form, but it is used in some chairs yet. I prefer uses subscript but my note-taking should reflect the class. however, in spanish speaking places, a common notation is the right angle character. Thanks again!!

Posted: **Sat Mar 26, 2016 10:04 pm**

In the Netherlands, polar co-ordinates are usually written in the form (radius, angle), or in this case (√2, π/4) (but an exception is made for complex numbers, they are written in the notation used by MrProgrammer). Maybe √2 | π/4 is a local variation on that notation.