MATLAB: Finding x that approximate y to zero

solving x

I am trying to find the the value x that make y approximately zero. Here is what I did:
e= 0.001 %error bar
for x = linspace(100, 170, 1000);
  y = 18.9*log(x/170) +0.0042*(x-170) + 8.314*log(0.000267/0.0001413); 
end
Thanks in advance.

Best Answer

e= 0.01 %error bar
x = linspace(100, 170, 1000);
y = 18.9*log(x/170) +0.0042*(x-170) + 8.314*log(0.000267/0.0001413); 
idx=find(abs(y)<e)
Related Question