# Relation between depths and thicknesses

1 visualización (últimos 30 días)
Moustafa Abedel Fattah el 12 de Jul. de 2022
Comentada: VBBV el 12 de Nov. de 2022
I have five buried layers of known depths and four of them are of known thicknesses. The last depth is obtained from the relation (z5 = sum t(i) + z1) as shown in attached figure. Please I need a short code to get the depths useing the foremention formula. (N.B. I have give a numerical values for depths and thicknesses)
Thanks in advance for quick response as always.
Best Regards;
M. Dahab
##### 0 comentariosMostrar -2 comentarios más antiguosOcultar -2 comentarios más antiguos

Iniciar sesión para comentar.

### Respuestas (2)

Bharat Chandra Mukkavalli el 12 de Jul. de 2022
Hi,
The following code will cater your purpose:
z = [7 38 65 117];
t = [31 27 52 268];
z5 = 0;
for i=1:length(t)
z5 = z5 + t(i);
end
z5 = z5 + z(1);
z(end+1) = z5;
Hope this helps!
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
Moustafa Abedel Fattah el 13 de Jul. de 2022
Thanks BM, for your kindest as also for quick response, it work but I need the depths of layers ( z = [7 38 65 117]) from the known thicknesses of layers (t = [31 27 52 268]) and the last layer depth's (have no thickness).
Can you or any one do it. thanks again

Iniciar sesión para comentar.

VBBV el 12 de Nov. de 2022
syms z1 z2 z3 z4 z5
t = [31 27 52 268]; % known thicknesses
eq1 = z1;
eq2 = z2 == z1 + t(1);
eq3 = z3 == z2 + t(2);
eq4 = z4 == z3 + t(3);
eq5 = z5 == z4 + t(4);
sol = solve([eq1 eq2 eq3 eq4 eq5],[z1 z2 z3 z4 z5])
sol = struct with fields:
z1: 0 z2: 31 z3: 58 z4: 110 z5: 378
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
VBBV el 12 de Nov. de 2022
you can solve for the depth variables using known thicknesses as above

Iniciar sesión para comentar.

### Categorías

Más información sobre Symbolic Math Toolbox en Help Center y File Exchange.

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by