# Question:Newbish question, issues with plots[multiple]

## Question:Newbish question, issues with plots[multiple]

Maple
Running into this problem, im trying to graph concentric circles (think planets) with a set radius and a set amount of time used to complete one orbit. I am using parametric equations with t being a value of time in terms of one complete orbit. However, when I try to graph these circles using plots[multiple] I get error codes. Heres my text~ We have our 5 planets, A - E orbiting around the sun affixed at the origin. We can easily graph these together to give us an idea of the orbit and time required to complete one. > plots[multiple](plot, > [0.71 cos(2.985074627 Pi t), 0.71 sin(2.985074627 Pi t), t = 0 .. 67], > [cos(2 Pi t), sin(2 Pi t), t = 0 .. 1], > [1.5 cos(1.063829787 Pi t), 1.5 sin(1.063829787 Pi t), t = 0 .. 1.88], > [5.12 cos(0.1680672269 Pi t), 5.12 sin(0.1680672269 Pi t), t = 0 .. 11.9], > [9.40(0.06779661017 Pi t), 9.40(0.06779661017 Pi t), t = 0 .. 29.5], > x = -10 .. 10, y = -10 .. 10) Error, (in plot) invalid arguments -------------------------- Anyone know what ails me?
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