How to use find() to find unique values in equations?
2 次查看(过去 30 天)
显示 更早的评论
Assume I have the following surfaces:
z1 = x + y and z2 = 2x + y
How can I use the find() function to find unique values of z for each equation given the same x and y values. By unique I mean values of z1 or z2 that are unique to each respective equation. For example, x and y = 0 would both give the same value for z1 and z2. That's what not what I care about. What I care about is knowing x and y values where z1 and z2 are both different.
I'm new to this so I might need a bit of a step-by-step explanation.
Thank you
0 个评论
回答(1 个)
Azzi Abdelmalek
2014-3-30
Example
x=10;
y=20
z1 = x + y
z2 = 2x + y
idx=z1==z2 % if idx is equal to 0, that means z1 and z2 are different
4 个评论
Azzi Abdelmalek
2014-3-31
From your equations, z1 and a2 are equals if x+y is equal to 2*x+y, which means 2x=x, no matter what y is.
you don't need Matlab to resolve this, the solutions are (0,y), y belong to [-10,10]
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!