Solve equations with

`fsolve`or`nSolve`with the option`bisection_solver``fsolve`or`nSolve`with the option`brent_solver``fsolve`or`nSolve`with the option`falsepos_solver``fsolve`or`nSolve`with the option`newton_solver``fsolve`or`nSolve`with the option`secant_solver``fsolve`or`nSolve`with the option`steffenson_solver`

giac documentation written by Renée De Graeve and Bernard Parisse