I have a function, S[q] which is obtained by integrating another function, A[r,q] over r.(adsbygoogle = window.adsbygoogle || []).push({});

My problem is that the lower limit of integration,

rmin depends on q in a complicated manner. Mathematica can however solve this equation to give several routes, only one of which is real which is the one I want.

I have a second function too, L[q] which is also obtained by integrating B[r,q] over r. Again the lower limit of integration depends on q in the same manner.

What I want to do is for a given value of q, solve

the equation for rmin, and use this to calculate

the corresponding L[q]. I then wish to calculate

S[q] in the same manner.

I want Mathematica to do this for many values of

q over a range and use the results to plot

S[q] against L[q]. Does anyone know an efficient

way to do this?

Thank you for your help.

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# Drawing more Complicated Graphs in Mathematica

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