The lack of handling root functions in hp prime

[yangyongkang]

Let's take a look at the equation of this nonlinear triangle plus root number, and XCAS is also in a loop.

Quote:solve([(cos(α)) = ((a+b)^2+(a+b+c)^2-(a+c)^2)/(2*(a+b)*(a+b+c)),(cos(ξ)) = ((a+b+c)^2+(a+c)^2-(a+b)^2)/(2*(a+b+c)*(a+c)),(b^2+a^2-2*a*b*cos(ξ)) = (x^2),(cos(β)) = (b^2+x^2-a^2)/(2*b*x),β = (2*α)],[α,β,ξ,x,c])