How to solve Regular Falsi Iteration Method using MATLAB??

2021 1 14
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更新时间：2021 1 18
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By using the False Position/ Regular Falsi Numerical method to find the positive root of the quadratic equation Correct to 3 significant figures:
f(x)=5x^2+11x-17

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James Tursa
James Tursa 2021-1-14
What have you done so far? What specific problems are you having with your code?
Ameer Hamza
Ameer Hamza 2021-1-18
clc
% Setting x as symbolic variable
syms x;
% Input Section
y = input('Enter non-linear equations: ');
a = input('Enter first guess: ');
b = input('Enter second guess: ');
e = input('Tolerable error: ');
% Finding Functional Value
fa = eval(subs(y,x,a));
fb = eval(subs(y,x,b));
% Implementing Bisection Method
if fa*fb > 0
disp('Given initial values do not bracket the root.');
else
c = a - (a-b) * fa/(fa-fb);
fc = eval(subs(y,x,c));
As you can see my above coding, however it is showing an error...
Enter non-linear equations: 5*x^2+11*x-17
Enter first guess: 1
Enter second guess: 2
Tolerable error: 0.0001
??? Undefined function or method 'eval' for input arguments of type 'double'.
Error in ==> Untitled4 at 13
fa = eval(subs(y,x,a));
Kindly help me out??

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