How do you graph #r=-8cos2theta#?
1 Answer
Jul 30, 2018
See 8-like graph and details.
Explanation:
No pixels for
in two periods
Use
0 <= r = sqrt ( x^2 + y^2 ) and ( x, y ) = r ( cos theta, sin theta )# d
convert to
The Socratic 8-like graph is immediate.
graph{ ( x^2 + y^2 )^ 1.5 + 8 (x^2 - y^2 ) = 0[ -18 18 -9 9 ]}