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Poissons Equation with Point source
You can use inpolygon to see if the origin is inside the triangle or not and polyarea to calculate the area of the triangle - ...

7 months 前 | 0

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How to group discontinuous numbers
load('Risk_values.mat'); whos idx = cumsum([1;diff(mediumRiskXValues)~=1]) out = accumarray(idx, mediumRiskXValues, [], @(x...

7 months 前 | 1

| 已接受

已回答
Why do I get an error "Matrix dimensions must agree."
Why are you using a for loop for a task that is not changing with iterations? "Why do I get an error "Matrix dimensions must ...

7 months 前 | 1

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how to do a legend with text, variables, and Greek symbols in it?
You can use the symbols as provided in the list here for the default interpreter (i.e. tex) - https://in.mathworks.com/help/matl...

7 months 前 | 0

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已回答
fopen and fget reading lines from a text
You need to use the file ID as input to fgetl - fid = fopen('test.txt'); %lines to read num = 3; %Preallocate a cell ar...

7 months 前 | 1

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已回答
Using parfor to evaluate integrations
See - Array vs Matrix Operations xmin = -2; xmax = 1; ymin = 1; ymax = 3; dx = 0.001; dy = dx; xs = xmin:dx:xmax; Nx = ...

7 months 前 | 2

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How do you get up to first n characters in a string?
A simple approach using extractBetween - s_arr = ["a";"ab";"abc";"abcd";"abcde";"abcdef";"xyzxyzxyz"] pos = 4; % pos = no. o...

7 months 前 | 3

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How to set both yticks(left and right) in decimal values not exponential or scientific??
Use get on the axes handle to see its structure - You will find that the YAxis is stored as 2x1 Numeric Ruler (1 for each side)....

7 months 前 | 0

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问题

Beam me up, Scotty!
It's the mid 22nd century. You, Montgomery Scott, are appointed the chief engineer of the Starship Enterprise. The Starship is...

7 months 前 | 1 | 8 个解题者

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index problem while sort
"ind=[2,1] is coming which is wrong." It is correct. The input to sort() only has 2 elements, so the expectation to get [3 1]...

7 months 前 | 1

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已回答
how to delete multiple cells at once?
First, concatenate the data to get it in a numeric array. See - horzcat As you are dealing with floating point numbers, compare...

7 months 前 | 0

已回答
Filtering the common rows between two matrices
Try this - A = [1 2 3; 4 5 6; 7 8 9]; B = [1 2 3 90; 3 1 2 88; 4 5 6 17; 6 5 4 19; 7 8 9 12; 15 18 22 20]; %sort each ro...

7 months 前 | 0

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Syntax problem in creating a function which takes a vector as an argument
Use element-wise power - power, .^ and define the expression as an anonymous function - r_1 = 0.84 - 0.29i; r_2 = 0.84 + 0.29i...

7 months 前 | 0

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已回答
How to apply for loop in case of product of function inside double summation?
That is simply the sum of product of pairs in the given index range for a and b, thus P can be defined like this - P = 1-sum((...

7 months 前 | 0

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partfrac() function returning same expression
It gives the same expression as the output because the denominator can not be decomposed with the default factor format i.e. 'ra...

7 months 前 | 1

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Trying to extract the rows from a matrix where the values from the first two columns match the values from another matrix
%Sample data for example y1 = magic(5) y2 = y1; y2(randi(25,1,5)) = 0 %Comparison idx = all(y1(:,1:2)==y2(:,1:2), 2) out =...

7 months 前 | 0

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已回答
Calculate double integrate of sin
You can simplify the expression obtained - syms theta rho n f = sin(rho)^(n + 2)*sin(theta)^(n + 1); I1 = int(f,rho,0,pi);...

7 months 前 | 0

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Upsampling a matrix with zero elements
%input x = [1 2 3 4; 5 6 7 8] %Upsample factor n=2; %preallocate the output matrix y = zeros(n*size(x)); %assign valu...

7 months 前 | 1

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Execution of script rainflow as a function is not supported, then gives the path of the rainflow.m file.
Follow instructions from this documentation page to add the directory you have mentioned to the search path of MATLAB and save i...

7 months 前 | 0

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How to split array into sub arrays?
a = [1 3 5 8 11 12 15 17 18 19 20 21 24 29 31 32 33 34 35 36 38 39 69].'; %bin the data into groups of 10 k = findgroups(flo...

7 months 前 | 0

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已回答
Execution of script Faddeeva_w as a function is not supported:
You have defined the file "Faddeeva_w " as a script. But you are trying to call it as a function i.e. by providing an input (as...

7 months 前 | 0

已回答
incorrect reading of a txt file
I am not sure what the expected output is supposed to be, but you can use readtable - in = readtable('test.txt','DecimalSepara...

7 months 前 | 0

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已回答
Problems using plot3
As I have mentioned earlier in my answer to one of your questions, do not use the deprecated xlsread function. Utilize the ro...

7 months 前 | 0

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已回答
Find common rows between two matrices with different number of columns
A = [1 2 3; 4 5 6; 7 8 9]; B = [1 3 20 2; 1 2 3 55; 7 8 9 10; 88 2 1 5]; %Indices of rows in B idx = 1:size(B,1); for k=...

7 months 前 | 1

| 已接受

已回答
Index in position 1 exceeds array bounds. Index must not exceed 1.
You have not defined "t" and many other variables as input to the function "Reduced_Degree_model". You have defined "tspan" and...

7 months 前 | 0

已回答
From what MATLAB version can max() return linear indices?
From the official documentation, R2019a was the version when this syntax was first introduced - https://in.mathworks.com/help/re...

7 months 前 | 1

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已回答
How can I get three plots from a struct array which is split by three categories?
Use a for loop to go through each unique category and utilize logical indexing to obtain and plot the corresponding data. Refer...

7 months 前 | 1

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已回答
What is this error and how do I fix it?
Most likely the function "calculate_residuals" is not in the current directory. Type "cd" in the command window to get the curr...

7 months 前 | 0

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已回答
Islocalmin/max on an Animated Plot and Indices Problem
The syntax of islocalmax (and islocalmin) is different than that of findpeaks. Check the documentation for the appropriate synt...

7 months 前 | 2

已回答
Bei der Installation kann das Passwort nicht eingegeben werden.
These might help you - https://in.mathworks.com/matlabcentral/answers/1456459-can-t-enter-text-when-installing-r2021a-on-ubunt...

7 months 前 | 2

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