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plot parametric curve from symbolic expressions

asked 2019-01-03 15:22:42 +0100

sagenotdead gravatar image

updated 2019-01-03 15:41:20 +0100

I would like to get the plot of the parametric curve $(x1(t),x2(t)$ for $t$ in $[0,1]$.

var('ts')

x1sol=vector([-cos(ts),sin(ts)])*exp(ts/2)

x11 = x1sol[0]

show(plot(x11(ts),x12(ts),(ts,0,1)))

I get the error: TypeError: unable to simplify to float approximation

I would like to avoid formulation as :

def x1(t): ....

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answered 2019-01-03 15:50:42 +0100

tmonteil gravatar image

updated 2019-01-03 19:12:00 +0100

There is a dedicated function for parametric plots:

sage: parametric_plot(x1sol, (ts, 0, 1))
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Asked: 2019-01-03 15:22:42 +0100

Seen: 338 times

Last updated: Jan 03 '19