ExcelBanter

ExcelBanter (https://www.excelbanter.com/)
-   Charts and Charting in Excel (https://www.excelbanter.com/charts-charting-excel/)
-   -   Which version of Excel can plot in POLAR COORDINATES? (https://www.excelbanter.com/charts-charting-excel/87997-version-excel-can-plot-polar-coordinates.html)

mjzocc

Which version of Excel can plot in POLAR COORDINATES?
 
I need to plot equations expressed in (r, theta) coordinates, WITHOUT first
converting them to Cartesion (x,y) coordinates. Can anyone advise if Excel
has this capability - if so, I certainly have not been able to find
it!.....Thanx

Andy Pope

Which version of Excel can plot in POLAR COORDINATES?
 
Hi,

It is not built in. You will have to use formula to convert them.

I have an addin that may make things easier. The page also includes some
links to alternative solutions.
http://www.andypope.info/charts/polarplot.htm

Cheers
Andy

mjzocc wrote:
I need to plot equations expressed in (r, theta) coordinates, WITHOUT first
converting them to Cartesion (x,y) coordinates. Can anyone advise if Excel
has this capability - if so, I certainly have not been able to find
it!.....Thanx


--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info

mjzocc

Which version of Excel can plot in POLAR COORDINATES?
 


"Andy Pope" wrote:

Hi,

It is not built in. You will have to use formula to convert them.

I have an addin that may make things easier. The page also includes some
links to alternative solutions.
http://www.andypope.info/charts/polarplot.htm

Cheers
Andy

mjzocc wrote:
I need to plot equations expressed in (r, theta) coordinates, WITHOUT first
converting them to Cartesion (x,y) coordinates. Can anyone advise if Excel
has this capability - if so, I certainly have not been able to find
it!.....Thanx


--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info


Hi Andy - thanx for the reply - but I still have some questions...

I gather that there is no built in Excel polar coordinate plot capabilty -
you mention that a conversion formula is necessary - are you say that the (r,
theta) point must first be converted to x,y coordiantes, and then plotted?

Or let me ask it another way - how did you generate the underlying polar
coordinate grid ?

Regards......mjzocc


Andy Pope

Which version of Excel can plot in POLAR COORDINATES?
 
Yes you need to convert the (r,theta) values into (x,y)

X: =COS(RADIANS(theta))* r
Y: =SIN(RADIANS(theta))* r

If you do not want to use helper columns for this you can use formula in
Named ranges.

Cheers
Andy

mjzocc wrote:

"Andy Pope" wrote:


Hi,

It is not built in. You will have to use formula to convert them.

I have an addin that may make things easier. The page also includes some
links to alternative solutions.
http://www.andypope.info/charts/polarplot.htm

Cheers
Andy

mjzocc wrote:

I need to plot equations expressed in (r, theta) coordinates, WITHOUT first
converting them to Cartesion (x,y) coordinates. Can anyone advise if Excel
has this capability - if so, I certainly have not been able to find
it!.....Thanx


--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info



Hi Andy - thanx for the reply - but I still have some questions...

I gather that there is no built in Excel polar coordinate plot capabilty -
you mention that a conversion formula is necessary - are you say that the (r,
theta) point must first be converted to x,y coordiantes, and then plotted?

Or let me ask it another way - how did you generate the underlying polar
coordinate grid ?

Regards......mjzocc


--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info


All times are GMT +1. The time now is 12:11 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
ExcelBanter.com