Kui \;  suur \;  on \;  astroidi\;\left\{\begin{array}{} x=u·cos^3t\ y=u·sin^3t\ \end{array} \right, \;  t∈[0; \; 2π] \; pikkus?

a = CurveCartesian((3 * (cos(t))^(3)), (3 * (sin(t))^(3)), t, 0, π)
b = Length(a, 0, π)
tekst1: "Matemaatiline \; analüüs \; II\\
Leidke \; joone \;\left\{\begin{array}{} x=3cos^3t\\ y=3sin^3t\\ \end{array} \right, \;  t∈[0; \; π] \; pikkus.\\
Vastus. \; " + (LaTeX[b]) + " "
a_{1} = CurveCartesian((3 * (cos(t))^(3)), (3 * (sin(t))^(3)), t, 0, (2 * π))
b_{1} = Length(a_{1}, 0, π)