Hey guys,
I'm trying to complete a homeowrk problem and I keep running into the error "Array indices must be positive integers or logical values." I don't know what I am doing wrong since my professor told us how to do most of the problem. Any help would be greatly appreciated. Thank you!
clear;clcx = [0.888: 0.01: 1.178]; %x values
for n = 1: 1: length(x) %must have different vector because variable index must be an integer
f(x) = -5*x(n)^3+17*x(n)^2+8*x(n)+9; %first function
g(x) = -13*x(n)^3+16*x(n)^2+9*x(n)+18; %secon function
if f(x) == g(x) %if the two functions outputs equal each other then they intersect
disp(x) %displays the x value of the intersection
endendfigure(1)plot(x, f(x), x, g(x))%creates a plot with two lines on the y-axis
title('WA06B by Tiffany Tabor')xlabel('x values')ylabel('f(x) and g(x)')
Best Answer