MATLAB: I need to helpe to solve this equation x-y=12, 0

@yuiioMATLAB

I need to helpe to solve this equation by matlab x-y=12, 0<x<22, 0<y<100

Best Answer

As I said, there are infinitely many solutions.

As well, it is often the case that the solution set of a system of inequalities is a rather complicated region. For the simple problem you have posed, this seems to work.

syms x y
assume(0 <= x & x <= 22)
assume(0 <= y & y <= 100)
sol = solve(x-y == 12,x,'returnconditions',true);
sol.x
ans =
y + 12
sol.conditions
ans =
y <= 10

Related Solutions

MATLAB: Solving two symbolic equations simultaneously

syms x y a b
eq1=a==x+y;
eq2=b==x-y;
[xsol,ysol]=solve([eq1 eq2],[x y])
sol.x
sol.y

or:

syms x y a b
eq1=a==x+y;
eq2=b==x-y;
[xsol,ysol]=solve([eq1 eq2],[x y])

MATLAB: Solving Equations in MATLAB

There is no general solution to such a problem. A common way is to specify several starting points for the numerical solver and find the unique solutions.

y = @(x) cos(x);
x_range = 0:0.1:4*pi;
y_sol = zeros(size(x_range));
for i = 1:numel(x_range)
    y_sol(i) = fzero(y, x_range(i));
end
y_sol = uniquetol(y_sol)

Best Answer

Related Solutions

MATLAB: Solving two symbolic equations simultaneously

MATLAB: Solving Equations in MATLAB

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