open root estimators (they are poo)

My balls/open_poopers.m

@@ -0,0 +1,39 @@
+clear clc
+# Bi section
+pkg load symbolic;
+
+
+f = @(x) 3*x.^2 - e.^x
+a = 0
+b = 1
+syms x;
+ff = f(x)
+function root = newton(f, x0)
+	if abs(f(x0)) < eps
+		root = x0;
+		return
+	endif
+	syms x;
+	df = diff(f(x));
+	ff = function_handle (df);
+	x0 = x0 -( f(x0) / deriv(f,x0) )
+	newton(f, x0)
+endfunction
+
+newton(f, 0.5)
+
+function root = secant(f, x0, x1)
+	if abs(f(x0)) < eps
+		root = x0;
+		return
+	endif
+	syms x;
+	df = diff(f(x));
+	ff = function_handle (df);
+	temp = x1;
+	x1 = x1 -( ( f(x1) * (x1 - x0) ) / ( f(x1) - f(x0) ) )
+	x0 = temp;
+	secant(f, x0,x1)
+endfunction
+secant(f, 1, 0)
+