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POlar coordinates watch

1. How would I draw r=acos(theta)
2. Plot a few values, what does it look like?

To actually find the Cartesian version
Spoiler:
Show
Multiply by r
3. pretend the intial line is the positive x axis (0 rads) the positive y axis is pi/2 rads the negative x axis is pi rads etc.
4. (Original post by SimonM)
Plot a few values, what does it look like?

To actually find the Cartesian version
Spoiler:
Show
Multiply by r
Does the value of r act the same as x values, i.e. as r increases does it move to the right on the initial line?
5. (Original post by vinsta)
Does the value of r act the same as x values, i.e. as r increases does it move to the right on the initial line?

6. (Original post by SimonM)

So, it acts as a diagonal then.
7. (Original post by vinsta)
So, it acts as a diagonal then.
r is the distance from the origin, is the angle to the initial line (the x-axis for you)

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Updated: January 26, 2009
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