How can I calculate the roots of the following  trigonometric function?

F[lambda[i]] := (sin(lambda[i])-tan(y*lambda[i])*cos(lambda[i]))*((1-1/B)*lambda[i]^2-k)+(lambda[i]^3/B+lambda[i])*(cos(lambda[i])-tan(`yλ`[i])*sin(lambda[i]))

Where : i=1..n , B=1..30, y = 0.9 and k=0.003

  In attached file I need to plot (R/R0 )^3  versus t for diffrent of (s) for example  s=0.01,0.005,0.003   plot.mwplot.mw

Hi

In attached mw file I have a equation that "a" is in unknown parameter. X and Y are matrixes of data. How can I calculate the "a" parameter?

Best regard

question.mw

Hi

I want to draw  plot y(x) against x but I can't. a, b , _C1 are parameter.

y := int(1/(-0.4016e-1*m^(2/3)-0.211e-3*m^(5/3)), m)

I have to  draw  plot m against y. I can draw plot y against m but i don't can draw plot m against y. Please help me.