Answered

solving non linear equations

Your code works properly for me. To access the the results - for example for the solution if N in the third iteration use: >> s...

solving non linear equations

Your code works properly for me. To access the the results - for example for the solution if N in the third iteration use: >> s...

3 giorni ago | 0

Answered

how to conver .csv data class from table to double

If it is only numeric data and a and b are of the same dimensions this should work: c = a{:,:} + b{:,:} for example: a1 = ran...

how to conver .csv data class from table to double

If it is only numeric data and a and b are of the same dimensions this should work: c = a{:,:} + b{:,:} for example: a1 = ran...

4 giorni ago | 0

Answered

How to convert time stamp 11:21:17.155 into seconds in MATLAB??

format longG a = '11:21:17.155'; b = seconds(duration(a,'InputFormat','hh:mm:ss.SSS')) results in: b = 4...

How to convert time stamp 11:21:17.155 into seconds in MATLAB??

format longG a = '11:21:17.155'; b = seconds(duration(a,'InputFormat','hh:mm:ss.SSS')) results in: b = 4...

4 giorni ago | 1

| accepted

Answered

numeric integral, symbolic function, whats wrong here?

clc clear syms t; rho = exp(sin(t)); theta = 2*exp(sin(t)); phi = 3*exp(sin(t)); rho_dot = diff(rho); theta_dot ...

numeric integral, symbolic function, whats wrong here?

clc clear syms t; rho = exp(sin(t)); theta = 2*exp(sin(t)); phi = 3*exp(sin(t)); rho_dot = diff(rho); theta_dot ...

4 giorni ago | 0

| accepted

Answered

Supplied objective function must return a scalar value. ERROR in fmincon

J is a 1x6 vector, but should be a scalar. You have to find out why and fix this.

Supplied objective function must return a scalar value. ERROR in fmincon

J is a 1x6 vector, but should be a scalar. You have to find out why and fix this.

4 giorni ago | 0

Answered

Bvp with unknown parameter

Try this using a good initial guess: <https://de.mathworks.com/help/matlab/math/solve-bvp-with-unknown-parameter.html>

Bvp with unknown parameter

Try this using a good initial guess: <https://de.mathworks.com/help/matlab/math/solve-bvp-with-unknown-parameter.html>

17 giorni ago | 1

Answered

Matrix symbolic calculation doesn't simplify expressions

try simplify - here is an example with your expression: syms w E = eye(3) * - (2^(1/2)*((2^(1/2)*w*1i)/2 - 2^(1/2)/8))/2 + (2^...

Matrix symbolic calculation doesn't simplify expressions

try simplify - here is an example with your expression: syms w E = eye(3) * - (2^(1/2)*((2^(1/2)*w*1i)/2 - 2^(1/2)/8))/2 + (2^...

29 giorni ago | 1

| accepted

Answered

char to vector conversion. using matrix of chars (16x128)

str2double or str2num should work for this.

char to vector conversion. using matrix of chars (16x128)

str2double or str2num should work for this.

circa 2 mesi ago | 0

Answered

Keep getting 'ans' output in Matlab function

Call it this way: [outResult, logoutResult] = file1(scalar, genvec)

Keep getting 'ans' output in Matlab function

Call it this way: [outResult, logoutResult] = file1(scalar, genvec)

circa 2 mesi ago | 0

| accepted

Answered

matrix manupulation and reading diagonally

This function may help: M = [13,10,5,2;7,14,11,6;3,8,15,12;1,4,9,16] MyResult = readDiag(M) function R = readDiag(M) R = c...

matrix manupulation and reading diagonally

This function may help: M = [13,10,5,2;7,14,11,6;3,8,15,12;1,4,9,16] MyResult = readDiag(M) function R = readDiag(M) R = c...

circa 2 mesi ago | 0

| accepted

Answered

How to cite only part of a vector in an equation?

One possible way: You could use findgroups in combination with splitapply. For example, a JaneDoe group would be a member of th...

How to cite only part of a vector in an equation?

One possible way: You could use findgroups in combination with splitapply. For example, a JaneDoe group would be a member of th...

circa 2 mesi ago | 0

Answered

how to train image?

A good starting point maybe here: https://de.mathworks.com/help/deeplearning/getting-started-with-deep-learning-toolbox.html?s_...

how to train image?

A good starting point maybe here: https://de.mathworks.com/help/deeplearning/getting-started-with-deep-learning-toolbox.html?s_...

circa 2 mesi ago | 0

| accepted

Answered

How can i use toeplitz in cell arrays?

G = cell(1,2); G{1} = ones(2); G{2} = 2*ones(2); c = [G{1} G{2}]; r = [G{1} zeros(2)]; result = toeplitz(c,r) results ...

How can i use toeplitz in cell arrays?

G = cell(1,2); G{1} = ones(2); G{2} = 2*ones(2); c = [G{1} G{2}]; r = [G{1} zeros(2)]; result = toeplitz(c,r) results ...

circa 2 mesi ago | 0

Answered

Solving equation for a value of x

You can use polyder, that calculates the derivative of a polynomial and then you can calculate the result at x=20 using polyval....

Solving equation for a value of x

You can use polyder, that calculates the derivative of a polynomial and then you can calculate the result at x=20 using polyval....

circa 2 mesi ago | 0

| accepted

Answered

Index in position 1 is invalid PID Controller

When you run this the first time you first call the inbuilt function tf and then later you create a variable, which is named tf ...

Index in position 1 is invalid PID Controller

When you run this the first time you first call the inbuilt function tf and then later you create a variable, which is named tf ...

circa 2 mesi ago | 0

Answered

min- imum number of coins required to pay

You have some issues in your if-else structure, but also you have a numerical problem - use uint datatype to avoid this: [NumCo...

min- imum number of coins required to pay

You have some issues in your if-else structure, but also you have a numerical problem - use uint datatype to avoid this: [NumCo...

circa 2 mesi ago | 1

| accepted

Answered

Problems using NVIDIA GeForce RTX 3090 for Deep Learning

Even if you don't like it, the best and probably most up-to-date answer to this question is: https://de.mathworks.com/matlabcen...

Problems using NVIDIA GeForce RTX 3090 for Deep Learning

Even if you don't like it, the best and probably most up-to-date answer to this question is: https://de.mathworks.com/matlabcen...

circa 2 mesi ago | 0

Answered

Show every step of lsqnonlin won't work

I think you look for something like this: phi1=1:((2*pi/10.71)):2*pi; r = -0.5 + (0.5 + 0.5) * rand(1,10); xrand ...

Show every step of lsqnonlin won't work

I think you look for something like this: phi1=1:((2*pi/10.71)):2*pi; r = -0.5 + (0.5 + 0.5) * rand(1,10); xrand ...

circa 2 mesi ago | 0

Answered

4-D uint8 , what does it mean?

There is a 2D for height and width of the video, which shows the resolution, the 3rd D is for example is of size 3 for RGB or of...

4-D uint8 , what does it mean?

There is a 2D for height and width of the video, which shows the resolution, the 3rd D is for example is of size 3 for RGB or of...

circa 2 mesi ago | 1

| accepted

Answered

Solve nonlinear equation using ODE45 function with different initial conditions

Corrected: %% Main Script L = 1; g = 9.81; h = 0.25; t = [0 5]; A = [0 1;(g/L) 0]; B =[0 1]'; Ics = [pi,0;pi/2 0;pi/5 ...

Solve nonlinear equation using ODE45 function with different initial conditions

Corrected: %% Main Script L = 1; g = 9.81; h = 0.25; t = [0 5]; A = [0 1;(g/L) 0]; B =[0 1]'; Ics = [pi,0;pi/2 0;pi/5 ...

circa 2 mesi ago | 0

Answered

Getting value of an optimisation variable in an optimisation problem

disp(sol)

Getting value of an optimisation variable in an optimisation problem

disp(sol)

circa 2 mesi ago | 0

Answered

How can i write a Objective function in vectorized form for GA optimization toolbox when the Objective function has many varialbess?

str1 = ("x(:," + (1:100) + ") .*"); str2 = ("x(:," + (101:200) + ") .*"); str3 = ("x(:," + (201:300) + ") +"); str = vertcat(...

How can i write a Objective function in vectorized form for GA optimization toolbox when the Objective function has many varialbess?

str1 = ("x(:," + (1:100) + ") .*"); str2 = ("x(:," + (101:200) + ") .*"); str3 = ("x(:," + (201:300) + ") +"); str = vertcat(...

circa 2 mesi ago | 1

| accepted

Answered

Error using optimoptions (Reference to non-existent field 'TolFunValue')

For *|optimoptoptions|* the correct option is *|FunctionTolerance|*. The usage of *|TolFunValue|* is the equivalent option when ...

Error using optimoptions (Reference to non-existent field 'TolFunValue')

For *|optimoptoptions|* the correct option is *|FunctionTolerance|*. The usage of *|TolFunValue|* is the equivalent option when ...

circa 2 mesi ago | 1

| accepted

Answered

Alternative to the function "findpeaks for the Version R2012b

Check FEX: https://de.mathworks.com/matlabcentral/fileexchange/25500-peakfinder-x0-sel-thresh-extrema-includeendpoints-interpol...

Alternative to the function "findpeaks for the Version R2012b

Check FEX: https://de.mathworks.com/matlabcentral/fileexchange/25500-peakfinder-x0-sel-thresh-extrema-includeendpoints-interpol...

circa 2 mesi ago | 0

| accepted

Answered

curly brackets system of equations via LaTeX

figure title({'$sin(x-y)-xy+1=0$','$x^2-y^2=0.75$'}, 'Interpreter','LaTex')

curly brackets system of equations via LaTeX

figure title({'$sin(x-y)-xy+1=0$','$x^2-y^2=0.75$'}, 'Interpreter','LaTex')

circa 2 mesi ago | 1

Answered

Global optimization: transfer variables to non-linear constraints

nonlcon = @(x)unitdiscc(x,a,b,c,d...)

Global optimization: transfer variables to non-linear constraints

nonlcon = @(x)unitdiscc(x,a,b,c,d...)

circa 2 mesi ago | 0

| accepted

Answered

Convert single data to double

You might want to use <https://de.mathworks.com/help/matlab/ref/squeeze.html *|squeeze|*> and <https://de.mathworks.com/help/mat...

Convert single data to double

You might want to use <https://de.mathworks.com/help/matlab/ref/squeeze.html *|squeeze|*> and <https://de.mathworks.com/help/mat...

circa 2 mesi ago | 0

| accepted

Answered

Help With plotting 3D Graph

Use: t=t.'; then call Result = psi(t) Also make sure that t is length needed --> here 2000

Help With plotting 3D Graph

Use: t=t.'; then call Result = psi(t) Also make sure that t is length needed --> here 2000

circa 2 mesi ago | 0

| accepted

Answered

Importing Engine Map Variables

T = readtable('C:\YOUR_PATH_NAME_HERE\Veri-MATLAB.xlsx') RPM = T{2:end,1} Power = T{1,2:end} Data = T{2:end,2:end} subpl...

Importing Engine Map Variables

T = readtable('C:\YOUR_PATH_NAME_HERE\Veri-MATLAB.xlsx') RPM = T{2:end,1} Power = T{1,2:end} Data = T{2:end,2:end} subpl...

circa 2 mesi ago | 1

| accepted

Answered

differentiation in matlab of two functions

syms a(theta) p q A eq1 = a(theta)==exp(2*pi*1i*A*[cos(theta);sin(theta)]) eq2 = theta==atan(p/q)+pi Deq1 = diff(eq1,thet...

differentiation in matlab of two functions

syms a(theta) p q A eq1 = a(theta)==exp(2*pi*1i*A*[cos(theta);sin(theta)]) eq2 = theta==atan(p/q)+pi Deq1 = diff(eq1,thet...

circa 2 mesi ago | 0