cannot solve simple equation

[Albert Chan]

Error screen already gives all the information you need.

v = tan(t) , t=-1.57 .. 1.57
tan(1.57) ≈ 1256., v guess (unit m/s) too low to have measurable relativistic effect

Let x = v/c, where c = 3e8

> solve(4.1 = 2.6/sqrt(1-x*x), x)      → {−0.773213048007, 0.773213048007}

Iterative solve: 4.1/2.6 about sqrt(2) → x about 0.75

> solve(4.1 = 2.6/sqrt(1-x*x), x=0.75)      → 0.773213048007

Bisection solve:

> solve(4.1 = 2.6/sqrt(1-x*x), x=0.6 .. 0.9)      → [0.773213048007]