MATLAB matrices, vectors, and equations help!!!
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Grace Rembold
am 25 Nov. 2019
Kommentiert: Star Strider
am 25 Nov. 2019
I'm currently trying to compute values of two different Variables, but the problem is that, while one equation is working, the other isn't. Here is my current code with my matrices included.
INITIAL MATRICES/ VECTORS:
X =
NaN
0.2200
0.3000
0.4400
0.4900
0.7000
0.8000
0.9000
1.1000
1.0000
1.1500
1.2000
1.2200
1.2600
1.2500
1.2700
1.2000
1.2200
1.2600
1.2000
1.2200
1.2600
1.2000
1.2200
1.2600
1.2500
t =
NaN
0
4
7
10
13
16
22
25
30
33
36
40
48
51
55
60
80
100
120
140
160
180
200
220
240
%% Problem 1
%{
X=Cell Mass Concentration (g/L)
U= Cell Mass Yield Per Carbon Monoxide gcells/mmolCO
t= Time (hours)
Mu= Specific Growth Rate
X1=X(1:end-1)
X2=X(2:end)
t1=t(1:end-1)
t2=t(2:end)
Mu=(X2-X1)/(t2-t1)
U=(X2-X1)/CO
%}
X1=X(1:end-1)
X2=X(2:end)
t1=t(1:end-1)
t2=t(2:end)
Mu=(log(X2)-log(X1))./(t2-t1);
U=(X2-X1)/CO;
%{
ans
Max value of Cell Mass Yield per Carbon Monoxide = max(Yx)
Max value of Cell Mass Concentration = max(Mu)
%}
% Find max values of specific growth rate(Mu) and cell mass yield(Yx/co)
Mumax=max(Mu);
Umax=max(U);
% Answer Display
sprintf('The maximum specific growth rate is %f, and the maximum cell mass yield per CO is %f',Mumax, Umax)
The problem with my current code is that, while Mu is equalling a vector which 26x1, U is equalling a matrix which is 25x26. I need U to also be a 26x1 vector, because currently my max value for U is 0.00000.
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Akzeptierte Antwort
Star Strider
am 25 Nov. 2019
The ‘CO’ variable is missing.
If ‘CO’ is a row vector rathar than a column vector, that could be the problem. If so, the solution would be to transpose it to a column vector. Remember to do element-wise operations, if that is what you want.
4 Kommentare
Star Strider
am 25 Nov. 2019
My pleasure.
If my Answer helped you solve your problem, please Accept it!
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