# Best Way to Graph in Polar Coordinates

#### Amer

##### Active member
what is the best way to graph in polar coordinates say

$$r = 3 - 5 \cos \theta$$

is it to plot several points then make a curve between them or ?

#### Sudharaka

##### Well-known member
MHB Math Helper
Re: Best way to Graph is polar

what is the best way to graph in polar coordinates say

$$r = 3 - 5 \cos \theta$$

is it to plot several points then make a curve between them or ?
Hi Amer,

Unless the curve given is a standard curve (circle, ellipse etc) or can be transformed into a standard form, we have to plot it by marking points. I drew your curve using Maxima.

http://imageshack.us/f/337/figure.png/

#### Amer

##### Active member
Re: Best way to Graph is polar

Hi Amer,

Unless the curve given is a standard curve (circle, ellipse etc) or can be transformed into a standard form, we have to plot it by marking points. I drew your curve using Maxima.

http://imageshack.us/f/337/figure.png/
thanks so i need to plot some points. ok

#### Sudharaka

##### Well-known member
MHB Math Helper
Re: Best way to Graph is polar

thanks so i need to plot some points. ok
Yes. Try plotting it and see if it really fits the curve I have attached.