how to tabulate results of function in matlab
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I have a program which I need to tabulate sin(t) function in t=[-3,3] and plot it in 50 points in this interval.My code is
function inversehw3a
disp(' t sin(t)')
for x=-3:6/50:3
y=sin(x);
A=[x,y];
disp(A);
end
x=-3:6/50:3;
plot(x,sin(x)),grid on
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Plus de réponses (2)
Image Analyst
le 15 Mar 2013
Modifié(e) : Image Analyst
le 16 Mar 2013
I probably would have used linspace() to avoid having to figure out what the step size needs to be - you just specify the 50 directly and it does it for you. I'd also vectorize the code like this:
x = linspace(-3, 3, 50);
y = sin(x);
% Plot it.
plot(x, y, 'bo-', 'LineWidth', 2);
grid on;
% Make labels:
fontSize = 30;
title('y = sin(x)', 'FontSize', fontSize);
xlabel('x', 'FontSize', fontSize);
ylabel('y', 'FontSize', fontSize);
% Enlarge figure to full screen.
set(gcf, 'units','normalized','outerposition',[0 0 1 1]);
EDIT
% Print out coordinates:
for k = 1 : length(x)
fprintf('(x(%d), y(%d)) = (%.4f, %.4f)\n',...
k, k, x(k), y(k));
end
Dianne Dampil
le 25 Fév 2014
0 votes
how can i tabulate this?
%Modified eler method %mod.m
syms x y; f = input('Enter the slope : '); x0 = input('Enter the initial value of x:'); y0 = input('Enter the initial value of y: '); h = input('Enter the value of h:'); x1 = x0; y1 = y0;
for i=1:25 y1 = y0 + h * subs(f,{x,y},{(x0+1/2*h),(y0+1/2*h*subs(f,{x,y},{x0,y0}))}) x0 = x0 + h y0 = y1; end
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