change constraints on residuals

python/src/LeastSquaresEquationsSolver_doc.i.in

@@ -45,6 +45,7 @@ Examples
 >>> formulas = ['y*x-sin(2*x)', '1 + cos(y) + x']
 >>> analytical = ot.SymbolicFunction(inputs, formulas)
 >>> algo = LeastSquaresEquationsSolver()
+>>> algo.setResidualError(1e-8)
 >>> starting_point = [2.0, 1.0]
 >>> solution = algo.solve(analytical, starting_point)
 "