orbit.frink

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// Demonstrate using Frink's solving ability to solve orbital equations.

use systemSolver2.frink
symbolicMode[true]
showApproximations[false]

orbit = new System[[ a === v^2 / r,
                     a === G earthmass / r^2,
                     r === earthradius + h,
                     c === 2 pi r,
                     T === c / v],
                    ["G", "earthmass", "earthradius", "pi"]]

println["All solutions:"]
println[join["\n", orbit.solveAll[false, true]]]

args = [["h", 180 km]]

println[]
println["Solution for v:"]
println[positive[eval[orbit.solveForValues["v", args]]] -> "mph"]
println[]

println[]
println["Solution for T:"]
println[join["\n", orbit.solveForValues["T", args]]]
println[]


Download or view orbit.frink in plain text format


This is a program written in the programming language Frink.
For more information, view the Frink Documentation or see More Sample Frink Programs.

Alan Eliasen was born 20217 days, 23 hours, 26 minutes ago.