求助，如何解二元二次方程组用matab？

5barbecue

Two ways.

1
solve('x+y-a',  'x*y-b')
But in this case, a and b must be replaced by their values, for example ('x+y-1.5',  'x*y-2').


2
solve(x+y-a, x*y-b)
In this case, a and b do not need to be numbers. They can be defined in many ways.
For example,
w=[1 3];
solve(x+y-w(1), x*y-w(2)^2).


Hope this will be helpful.