plotting non-linear equation

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friet
friet 2018년 3월 17일
답변: Star Strider 2018년 3월 17일
Hello matlab,
I have this equation y*x= 1+ ln(y/x);
x varies from 0 to 1. Is there any way to plot x vs y?
Best

답변(1개)

Star Strider
Star Strider 2018년 3월 17일
There is, if you have the Symbolic Math Toolbox:
syms x y
Eqn = y*x == 1 + log(y/x);
y = solve(Eqn, y);
figure(1)
fplot(real(y), [0 1], '-b')
hold on
fplot(imag(y), [0 1], '-r')
hold off
grid
set(gca, 'YScale','log')
xlabel('X')
ylabel('Y')
legend('Re\{y\}', 'Im\{y\}')
y =
-wrightOmega(- log(-1/x^2) - 1)/x

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