Answered
generate new coordinates (starting from initial coordinates) that are arranged outwards (by a distance H) and on the same plane
Project the points into a 2D coordinate system on the plane. Then use polyshape. Then project back to 3D. load trace H=0.5; ...

2 years ago | 1

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Why is accuracy absent in training progress plot?
Probably because the examples in the docs are for trainNetwork, not trainSOLOV2.

2 years ago | 0

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How to test if equation in .p file is linear.
Well, there's no test that will verify linearity globally (for all inputs), but you can select random inputs and test the applic...

2 years ago | 0

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Error using trainNetwork (line 184) The training sequences are of feature dimension 1 792 but the input layer expects sequences of feature dimension 1.
fn=@(z) reshape( num2cell(permute(z,[1,3,2]),2) ,[],1); X_train=fn(X_train); y_train=fn(y_train); X_test=fn(X_test); y_te...

2 years ago | 1

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Linprogr in Matlab not finding a solution when a solution exists
The problem seems to be that the inequality constrained region has barely any intersection with the equality constrained region....

2 years ago | 0

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Problems with savepath in R2023b
Tech Support advised running Matlab "As Administrator" and this did solve the problem.

2 years ago | 1

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Get indices of matching values (vectorized find function)
[~,b_reconstructed]=ismember(c,a)

2 years ago | 0

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generate triangular mesh starting from the external nodes (rx3) of a circle
load V V=num2cell(V,1); [x,y,z]=deal(V{:}); trisurf(delaunay(x,y), x,y,z)

2 years ago | 0

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Answered
Error in the use of fminunc function
I would try a clean re-install of Matlab (i.e., deleting all installation folders that may have been created).

2 years ago | 0

Question

Problems with savepath in R2023b
I have just installed R2023b on two different machines. Both give the following problem, when trying to use savepath >> addpath...

2 years ago | 3 answers | 7

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Answered
License Manager Error -9
Change your username back to what it was.

2 years ago | 0

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Rotating data using griddata
You should probably just use imrotate with the loose option flag.

2 years ago | 0

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Change axes position in tiled layout
This File Exchange alternative gives considerable flexibility on the spacing, https://www.mathworks.com/matlabcentral/fileexcha...

2 years ago | 1

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Answered
Random points on a curve
Youc an interpolate the curve at random points using interp1.

2 years ago | 0

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transform infinite plane into finite circular plane
You can use patch. [a,b,c]=deal(1); %fake input data P=[1 1 1]; R=2; t=(0:359)'; V=R*[cosd(t),sind(t)]*null([a,b,c])' ...

2 years ago | 2

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Answered
Can object properties be assigned in bulk without the need for a loop statement?
Is there a vectorized approach to achieve this without the need for a loop statement? No, there isn't. Nor is there anything t...

2 years ago | 0

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How to solve out of memory error when constructing sparse matrix
It's a 5 GB matrix. Are you sure you have enough RAM?

2 years ago | 0

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quadruple summation using function
n = 100; tic; sum(sin(0:n))^4; toc

2 years ago | 1

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create a normal plane passing through a point P knowing the coordinates of the direction of the Normal vector to point P
a=normal(1); b=normal(2); c=normal(3); d=dot(normal,P); fimplicit3(@(x,y,z) a*x+b*y+z*c-d )

2 years ago | 2

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Answered
Is there a classdef startup/initializer method?
As one example, you can initialize a property with a class-related function like below. Various other options are discussed here...

2 years ago | 0

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Answered
How to handle cells?
I would use logical arrays instead of cells. r = 'r'; s = 's'; p = 'p'; d = "Its a Draw!"; u1 = "User1 wins!"; u2 = "User2 wins...

2 years ago | 0

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Answered
how to use varagin with parameter
Another possibility: out=definedAndVariableNumInputs(10,20,f=3) function out=definedAndVariableNumInputs(X,Y,varargin) ...

2 years ago | 0

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how to use varagin with parameter
Perhaps this is what you're looking for: opts=myfunc(f=3) opts=myfunc(b=5) opts=myfunc(f=3,b=5) function opts=myfunc(o...

2 years ago | 0

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Plotting Anonymous Function of two variables
f1 = @(x) erf(x(1))+cos(x(2)); fsurf(@(x1,x2) f1([x1,x2]) , [-5 0 -5 5])

2 years ago | 0

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Answered
Problem 1899. Convert a Cell Array into an Array
x = {'01', '56'; '234', '789'}; y=[x{:}] x={'' 'a' '1'; 'AA' 'BB' 'CC'; 'dog' 'cat' 'car'}; y=[x{:}] x={'We' 'do' ;'ll ' ...

2 years ago | 0

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Answered
how can we find the coordinates of more points besides the points automatically generated by Contour in MATLAB?
You can interpolate the points uniformly with interparc: https://www.mathworks.com/matlabcentral/fileexchange/34874-interparc

2 years ago | 0

Question

How to doc() a command which is overloaded by multiple toolboxes
The evaluate() command has a version in both the the Curve Fitting Toolbox and in the Optimization Toolbox. How does one use doc...

2 years ago | 1 answer | 0

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Answered
How do I make this array index into a function of two other array indices?
Perhaps you meant to have this: for i=1:70 cx(i)=-L(i)/2*(cp(i+1)+cp(i))*sin(theta(i)); end

2 years ago | 0

Answered
Draw samples using a Non-Gaussian distribution
x = randn(100,1); x(randperm(numel(x),50))

2 years ago | 0

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Error in plotting - indices not compatible
vpasolve is returning empty (because it found no solution), so you cannot assign it to soly3(1) >> vpasolve(subs(N1_subs_tsol3/...

2 years ago | 0