Question

if statement with ge and &
I don't understand why the following line is producing an error: if j ge 2 & cANALY(i+1,j-1) < 0 j is a scalar and cANALY(...

3 years ago | 1 answer | 0

Question

"Highlight" a vertical gridline on a figure
I have a figure where the range of x values starts at a negative value and goes to a positive value. I would like to "highlight...

3 years ago | 1 answer | 0

Question

set xticks by calculation but also force 0 to be displayed
I am setting xticks manually based on user inputs for distance. The plot will span the distance range; for example -1.3E-06 to ...

3 years ago | 2 answers | 0

Question

string for figure title ignores text after variable
I have the following code while creating a figure: titlestr=sprintf('Time=%6.5f',t(1), 'sec'); title(titlestr); No error...

3 years ago | 1 answer | 0

Question

min function on two arrays
I've read the documentation on the min function, but still don't understand how it works on two arrays. I have the following: ...

3 years ago | 1 answer | 0

Question

Sum function on part of an array
I don't understand what the following sum function does. mA=zeros(M,1); mA(1)=sum(cA(1,:))*dx; mA is a column vector, s...

3 years ago | 1 answer | 0

Question

Initializing 1/2 of a row with one value and the other half with another
I don't understand why the following works. It initializes row 1 of the array c with values of 1 in roughly the first half of t...

3 years ago | 2 answers | 0

Question

Find the first element of a column in a matrix that has a value equal to zero
I have an m by n matrix and I'm interested in the nth column. Initially all of the values in the nth column are greater than ze...

3 years ago | 1 answer | 0

Question

How to code an instantaneous reaction in Matlab
I have two slabs adjacent to one another. One contains acid and one contains base. The reaction at the interface in instantane...

3 years ago | 2 answers | 0

Question

Can Matlab be used to solve a moving boundary problem
I'm trying to determine the neutralization time (tn) of strong acid and strong base. Strong acid, A, is initially in a slab of t...

3 years ago | 0 answers | 0