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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 ...

4 mois il y a | 1

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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...

4 mois il y a | 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...

4 mois il y a | 2 réponses | 0

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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...

4 mois il y a

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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...

4 mois il y a

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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...

4 mois il y a

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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...

4 mois il y a

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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...

4 mois il y a | 1

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Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...

4 mois il y a

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Largest Geometric Series
Extension of Ned Gulley's wonderful Problem 317. In a geometric series, ratio of adjacent elements is always a constant value. ...

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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 ...

4 mois il y a

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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...

4 mois il y a | 0

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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...

4 mois il y a

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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...

4 mois il y a | 1

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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...

5 mois il y a | 1 réponse | 0

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help 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))

5 mois il y a | 0

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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.

5 mois il y a

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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...

5 mois il y a | 0

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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...

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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...

5 mois il y a | 0

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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...

6 mois il y a | 0

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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...

6 mois il y a | 0

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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...

6 mois il y a | 0

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Representing an orifice whose length is greater than the orifice diamter using Simscape Fluids (IL)
I think you can realize such a nozzle using both Pipe (IL) block and Orifice (IL) block. For example, you can connect orifice bl...

6 mois il y a | 1

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Cumulative Count
Given a row vector of integers with repeating values (with all repeating values occuring in a single continuous run), create an ...

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Multiply real numbers to get the smallest integers
Write a function that takes a vector of real numbers and multiplies them by a factor to produce the integers with the smallest a...

7 mois il y a

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SVD to a matrix subset (rows)
I find there is a svdappend function for calculating SVD of matrix incrementally, such as from SVD of A to SVD of [A,D] or [A;D]...

7 mois il y a | 0

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find powers of two
find the unique, non-repeating, powers of 2 that sum to a given non-zero integer, n example: n = 23 result = [1 2 4 16] ...

7 mois il y a

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Why does this error occur? Error using cwt>parseinputs (line 510) Invalid number of scalar input arguments. Error in cwt (line 297) fbcell = parseinputs(Norig,TTable,varar
You do not need to pass scales argument explicitly. The scales argument is excluded of cwt function's signature. The minimum and...

7 mois il y a | 0

Question

How to simulate electro-hydraulic actuator system with hydraulic oil thermal effect in Simscape
I want to simulate hydraulic actuator with hydraulic oil thermal effect use Simscape. I find there is an example model Close...

7 mois il y a | 1 réponse | 0

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