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Solved
Multiplying the Sums of Two Arrays
Get two arrays, add the values within the array up, and then multiply the two total values. [2,3]*[3,6] 5*18 90
ungefär 5 timmar ago
Question
What is the best practice to train a NeuralODE model with very small learnable parameter ?
I want to train a NeuralODE model which approximates a complicated physical system with complex governing ODEs. The physical sys...
8 dagar ago | 0 answers | 0
0
answersSolved
Return the Square of a Number
Write a function that takes a single numeric input x and returns its square. That is, given x, your function should output x^2....
8 dagar ago
Question
How to realize Maximum Mean Discrepancy (MMD) based on pdist2 function ?
The MaximumMean Discrepancy (MMD) is a statistical testing method and one of the most widely used distance metrics in transfer l...
11 dagar ago | 0 answers | 0
0
answersQuestion
How to read a text file with irregular timestamp data using detectImportOptions function ?
I want to read the condition monitoring datas stored in the text file. The data text file has 7 colums, where the first colum re...
13 dagar ago | 1 answer | 0
1
answersimulink仿真结果数据采集
@张海云. You can use Simulink.SimulationInput objects to configure 1000 models with different setting. Then, you can use parsim to ...
14 dagar ago | 0
| accepted
How to implement interpolation using Prelookup using a MATLAB function?
@Amr. interpn can be used for N-D interpolation (table lookup). Data = rand(1201,26,37,384); [X1,X2,X3] = ndgrid(linspace(0,2,...
14 dagar ago | 0
Size of predictions and targets must match.
@Bahadir. As indicated by the error message, the size of prediction and the target must be equal. I think you should reduce the ...
15 dagar ago | 1
| accepted
Movmedian with non-uniform sample points
@Robert Watson.The SamplePoints argument of movmedian function represents the location of data, it must has the same length with...
18 dagar ago | 0
Question
How to integrate a control system by ode45 with PID control input ?
I want to simulate a control system using ode45 function. The system model can be expressed as , where the control input is the...
19 dagar ago | 2 answers | 0
2
answersSolved
Calculate Lift Force on an Airfoil
Write a MATLAB function to calculate the lift force acting on an airfoil given the air density, wing area, velocity of the airfl...
20 dagar ago
Solved
Calculate Drag Force
Write a MATLAB function to compute the drag force on an object moving through air: where: D is drag force (N) ρ is air de...
20 dagar ago
Solved
Compute Airspeed from Mach Number
Write a MATLAB function that converts a Mach number to airspeed given the speed of sound aa in m/s: V=M⋅a V = airspeed (m/s) M...
20 dagar ago
Solved
Calculate Reynolds Number
Write a MATLAB function that calculates the Reynolds number for flow over a flat plate: ρ = fluid density (kg/m³) V = veloc...
20 dagar ago
Imaginary output from arccosine function when the input is close to -1
@Ali. After loading the m and n vectors from your attached NormalVectors.mat file. I find that the calculation result of theta i...
24 dagar ago | 1
| accepted
Solved
Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...
25 dagar ago
Solved
Largest Geometric Series
Extension of Ned Gulley's wonderful Problem 317. In a geometric series, ratio of adjacent elements is always a constant value. ...
25 dagar ago
Solved
Generate Square Wave
Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...
25 dagar ago
what is power spectrum value mean ('pspectrum')
@지호. The documentation of pspectrum illustrates that the calculation processes to construct the spectrogram of a nonstationary s...
27 dagar ago | 0
Solved
Find last zero for each column
Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...
29 dagar ago
How to change folder for "slprj" folder generation?
@Sergei. For setting up the path of "slprj" folder, you have to configure the SimulinkCacheFolder of project. For instance, my...
ungefär en månad ago | 1
| accepted
Question
What is the best practice to understand the source code of MATLAB's built function ?
I want to learn the basic theory of wavelet synchrosqueezed transform, and find that there is a built-in function wsst in the Wa...
ungefär en månad ago | 1 answer | 0
1
answerhelp me to fix this finveser code
syms t; v01 = 30; v02 = 25; h1 = 25; h2 = 30; g = 9.78; x1(t) = v01*t; y1(t) = h1 - (1/2)*g*t^2; y1(finverse(x1,t))
ungefär en månad ago | 0
Solved
Compute the Dedekind psi function
Write a function to compute the Dedekind psi function. The values for n = 1, 2, 3, 4, 5, and 6 are 1, 3, 4, 6, 6, and 12.
ungefär 2 månader ago
PMSM DRIVE EXAMPLE: where are the model's variables located?
@Stefano. The variables appearing in the base workspace is calculated from the PreloadFcn callback function in the PMSM model. Y...
ungefär 2 månader ago | 0
Squeeze-and-Excitation-Inception Architecture for 1D-CNN in MATLAB: Input Data Format Specification and Dimension Matching Issues Between Modules
@dachen wang. For the first issue, the documentation of convolution1dLayer states that the desired input format of convolution1d...
ungefär 2 månader ago | 0
| accepted
How to open 2023 models in 2025 version
@Tope Roseline. As indicated by the prompt message, the old model established in R2023 has obsolete simscape blocks which are no...
ungefär 2 månader ago | 0
Unable to use structName.?ClassName for VideoWriter class
I think the options.?ClassName syntax is not supported within arguments block. You should specify each name-value pair individua...
3 månader ago | 0
how can I simplify this code?
function [idx,pairs,scan] = Two_Ended_Search_2(x,target) idx = find(x==target); n = length(x); LR = min(idx-1,n-i...
3 månader ago | 0
| accepted
Issues creating error bar for bar figure
The problem lies in the variable Names is string array, which is not supported by errorbar function. You can use categorical fun...
3 månader ago | 0
