Question

Delete some frames of a video

I have uploaded a video on Matlab and using the following code, I manage to read each frame and plot it on a figure: x = VideoR...

26 days ago | 1 answer | 0

Question

solve differential equation with matrix

How can I solve the following differential equation with MATRIX? where T is the unknown: P is known (I know P4, P5 and P6)...

29 days ago | 1 answer | 0

Question

Superposition of a line between 2 point in a image

I have an image of a person. I have the coordinates (in pixel) of the 2 points of his shoulder. I would like to superimpose a li...

1 month ago | 1 answer | 0

Question

Solve triple integral of a function that upload its value every step

I have to solve this TRIPLE integral: P_4=integral3(fun_r,R1,R2,0,tau,z3,z4); In order to solve this integral, it is NECESSARY...

1 month ago | 0 answers | 0

Question

I need to solve the following TRIPLE INTEGRAL

I need to solve the following triple integral: The input data are: np=10; sigmac=16e6; tau=0.9; a=10e-3; b=10e-3; ...

1 month ago | 0 answers | 0

Question

is it possible to detect particular points on a video uploaded in matlab?

I would like to find some points (for example the two points of the shoulder of a man) in a video uploaded in matlab in which th...

2 months ago | 0 answers | 0

Question

How use interp2

I have: sigma which is a vector 1x6 OMEGA which is a vector 1x10 T which is a vector 6x10 (since T is a function of sigma e O...

2 months ago | 1 answer | 0

Question

how "fplot" works?

I have a function which depends on a particular variable, that is T(theta) where the variable is theta. Then, I plotted the func...

3 months ago | 1 answer | 0

Question

Plot a fourier transform of a 1x1 sym. WARNING: The following error was reported evaluating the function in FunctionLine update: Unable to convert expression into double array.

I have a function "J" which depends by the variable "theta". In particular I have obtained a 1x1 sym value. I can plot this fu...

3 months ago | 0 answers | 0

Question

Subscript indices must either be real positive integers or logicals.

I need to consider this for end loop: for thetat=0:0.012566:0.6283 %I need 50 points ...

3 months ago | 1 answer | 0

Question

how to plot a function where there is inside 1x1 sym?

I want to plot T(OMEGA): T=real(1i*n*alfak*(besselj(np+1,alfak))^2*(conj(A3)*B3-A3*conj(B3))) where: np is known n is known ...

3 months ago | 1 answer | 0

Question

How to plot a function with 1x1 sym value

I want to plot T(OMEGA): T=real(1i*n*alfak*(besselj(np+1,alfak))^2*(conj(A3)*B3-A3*conj(B3))) where: np is known n is know...

3 months ago | 1 answer | 0

Question

How to convert 1x1 sym into numeric value in the workspace?

I need to solve this system of equations and I need to obtain the numerical value of all coefficient also in the workspace. ...

3 months ago | 2 answers | 0

Question

Solve equation with bessel function of first kind

I need to solve in matlab this equation in order to find all the alfak that satisfy this equation: where: -Jnp is the bessel...

3 months ago | 1 answer | 0

Question

Solve laplace equation in a closed form with boundary condition

Is it possible to solve the Laplace equation (3 spatial dimension + time) in Matlab in order to obtain a closed form solution? T...

4 months ago | 1 answer | 0