Plot x^2+y^2+xy+x+y=0 ?
Plot x^2+y^2+xy+x+y=0 ?
(OP)
Do you know how I could go about plotting this function?
x^2 + y^2 + xy + x + y = 0
Thanks,
Brian
x^2 + y^2 + xy + x + y = 0
Thanks,
Brian
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RE: Plot x^2+y^2+xy+x+y=0 ?
-Sam Boyce
Asst. Mechanical Engineer
www.AppleAid.com
RE: Plot x^2+y^2+xy+x+y=0 ?
Anyway, I ended up using ezplot, and it works well.
-Brian
RE: Plot x^2+y^2+xy+x+y=0 ?
-Sam Boyce
Asst. Mechanical Engineer
www.AppleAid.com
RE: Plot x^2+y^2+xy+x+y=0 ?
Why wouldn’t you just find a series of solutions and plot the points in the plane? If you want to plot line segments between points, I guess you could sort the data by x.
For this particular example I would be tempted to use an ad hoc method.
x^2+y^2+xy+x+y=0 can be re-written as
3/4x^2+1/2x+(y+1/2x)^2+(+y+1/2x)=0
Define u=y+1/2x then
3/4x^2+1/2 x +u^2+u=0
For an array of u values one gets x values by the quadratic formula (Possibly 2 solutions.). With the x values one gets the y values from the definition of u. Plot the points.
Regards,
Bill