## How can I plug a solution from an equation back into another endlessly?

### matlabuser12 (view profile)

on 3 Apr 2014
Latest activity Answered by Image Analyst

### Image Analyst (view profile)

on 3 Apr 2014

I have two equations, for example:

```A=x+yz+B
B=l+p-A
```

assuming everything but A and B are constants, and I know an initial A or B (so I can get one solution) how can I take that answer and plug it in for the next solution, and iterate through solutions until either zero or set amount of solutions has occurred?

A Jenkins

### A Jenkins (view profile)

on 3 Apr 2014

What have you tried?

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### Image Analyst (view profile)

on 3 Apr 2014

Try a while loop:

```A=1
B=1
x=2
y=3
z=4
l=6
p=7
tolerance = 9999999
loopCounter = 1; % Failsafe - max # loops.
while tolerance > 0.1 && loopCounter < 100
A=x+y*z+B
B=l+p-A
tolerance = abs(A) % Whatever ending condition you want.
loopCounter = loopCounter + 1;
end
```

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