to find polar curve area

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Raniya
Raniya 2020-12-10
评论： Bjorn Gustavsson 2020-12-10
Plot the polar curve r = 3(cos 2 θ) and curve r = 2 on the same graph and find the area of
the portion outside the curve r = 2 and inside r = 3(cos 2 θ)

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回答（1 个）

Bjorn Gustavsson
Bjorn Gustavsson 2020-12-10
The area of a circle-sector is:
Use that for each small sector of your areas, add them up, then change the number of elements in theta and repeat.
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Raniya
Raniya 2020-12-10
Hello,thank you for reaching out.It actually worked.Can you please help me code the area?Thank you.
Bjorn Gustavsson
Bjorn Gustavsson 2020-12-10
You appear to be very new to matlab. Therefore I suggest that you work through the on-ramp tutorials/course:on-ramp.
Then have a browse through the demos and the help.
For integration the simplest ways are: trapz and integral.
HTH

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