MATLAB: Linear system of equations

linear system of equationssolve

I am trying to use 'solve' to solve this system of equations:

solve('5*x+6*y=5','10*x+12*y=10')

and I get the a return saying:

Warning: The solutions are parametrized by the symbols:
z = C_

and when I try to look at the solutions it introduces the variable z :

soln =
[ 1 - (6*z)/5, z]

How can I fix this?

Best Answer

Your equations are not independent. The second is 2 times the first

Related Solutions

MATLAB: Numerical Solution for a System of THREE Differential Equations

This is an ODE, not PDE. Look for the ODE suite

MATLAB: Linear regression

% Define sample data.
X = [1,2,3,4,5,6,7,8,9];
Y = [4 5 6 9 8 7 4 1 2];
% Do the plotting:

plot(X, Y, 'bo', 'LineWidth', 3, 'MarkerSize', 15);
grid on;
% Maximize the figure window.
set(gcf, 'units','normalized','outerposition',[0 0 1 1]);
% Label the various parts of the plot.
fontSize = 20;
title('lowcalorie Plot', 'FontSize', fontSize);
xlabel('X', 'FontSize', fontSize);
ylabel('Y', 'FontSize', fontSize);
coefficients = polyfit(X, Y, 1);
fittedY = polyval(coefficients, X);
hold on;
% Do the plotting:
plot(X, fittedY, 'rs-', 'LineWidth', 3, 'MarkerSize', 15);
legend('Y', 'Fitted Y');

Best Answer

Related Solutions

MATLAB: Numerical Solution for a System of THREE Differential Equations

MATLAB: Linear regression

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