Answered
Using fzero for intesection and "integral" for area calculation
g=@(x)exp((-x.^2)./2); h=@(x) x.^2-4.*x; x=linspace(-1,5,100); plot(x,g(x)); hold on plot(x,h(x)); You did that much cor...

6 years ago | 0

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Guess for fsolve returns similar answer (heavily non-linear equations)
We don't see your equations. Almost certainly, they are pretty nasty looking. You tell us the exit flag was -2. That flag says ...

6 years ago | 1

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Answered
How can I use symbolic variables while solving problems of MATLAB Cody?
I recall that Cody disallows the use of essentially all toolboxes. Symbolic variables are only active for you, IF you have the s...

6 years ago | 0

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Obtained results are far from the specified objective function when using fmincon with a Multi-Start.
No numerical optimization that applies to a completely general nonlinear function will converge to the global soution regardless...

6 years ago | 1

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Please help me, how to plot for this function?
your function is complex. But a complex variable is really TWO variables, bundled into one. In ths case, it appears the imaginar...

6 years ago | 1

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Matrix multiplication accuracy problem
The Mathworks is NOT rounding numbers just to make your life difficult. They are not rounding numbers at all, at least not beyon...

6 years ago | 2

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Trouble computing the factorial of a vector
No. Look CAREFULLY at that vector. Are they really zero? Or are they just relatively zero? F = factorial(1:50); F([1 2 48 49...

6 years ago | 1

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Solve plane equation with 3 points and additional condition
This is actually pretty simple. I think you may be missing how simple it is. In three dimensions, 3 points determine a plane. T...

6 years ago | 3

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Answered
Dealing with numbers bigger than Realmax
No. Not using double precision numbers. That does not say you can do nothing. You can use the symbolic toolbox to compute the ...

6 years ago | 0

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While loop with power.
This is the discrete logarithm problem. https://en.wikipedia.org/wiki/Discrete_logarithm#:~:text=Modular%20arithmetic.%20One%20...

6 years ago | 1

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Answered
How to pseude-randomize dataset with constraints
So, you want it random, but you don't really want it random, in a sort of vague, unspecified way. Can you do this in MATLAB? NO...

6 years ago | 0

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How to calculate the volume of a segment of spherical cap intersected by a plane ?
I did suggest this scheme in my response to your question. And it seems pretty easy to do, so I am not sure where the problem li...

6 years ago | 0

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Answered
Array indices must be positive integers or logical values
The problem lies here: for i = 1:N za(i) = (z(i+1) - z(i-1))/(2*h); end When the loop starts out, what is i? i is 1, ri...

6 years ago | 0

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Help fitting data to an implicit equation
My thought would be the lazy solution. If your model is: ((1-y)^(1-b)/y)=exp(-kt) then log the model. That is, we know tha...

6 years ago | 0

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How can I interpolate between my original endpoints with cscvn?
I think you do not understand splines. (Not uncommon.) Splines have the property that they can produce results that lie outsid...

6 years ago | 0

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Function fitting on a set of data points
What did you do wrong? It looks like Jon may be correct, in that you did not use the newly estimated set of parameters from the ...

6 years ago | 0

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Question About Number Format in MATLAB Command Window
These are numbers from the symbolic toolbox. That toolbox does not use the format tools to display numbers (though perhaps argua...

6 years ago | 1

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How to Use "Ask a Question" Section Correctly?
It looks like this is a (surely quickly fixed) bug in the site itself. They recently made some changes, allowing users to use ...

6 years ago | 1

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Precision (decimal digits) are very low and digits(32) does not help.
Of course, asking for 32 or more digits of precision is a bit on the side of the ridiculous, when the numbers going into the com...

6 years ago | 0

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how do i download the function kstest_2s_2d?
You click on the link that says download, from this page. https://www.mathworks.com/matlabcentral/fileexchange/38617-kstest_2s_...

6 years ago | 0

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array and inverse tan
I think you do not unerstand MATLAB. I'd start with taking the Onramp tutorial. atand of what? atand is a FUNCTION. You need to...

6 years ago | 0

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Answered
for loop help - Newton's method
I agree with much of what David has written (except for one thing). If you wish, feel free to accept his answer, as long as you ...

6 years ago | 0

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Aerofoil graph interpolation/extrapolation
You lack sufficient information to construct a meaningful surface, since you have only 2 pieces of information in terms of Reyno...

6 years ago | 1

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how do i generate a torus?
WAY too much effort here to generate a torus. Start here: https://en.wikipedia.org/wiki/Torus [theta,phi] = meshgrid(linspace(...

6 years ago | 1

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Using fminbnd on a Function with Multiple Outputs
Just evaluate your function one more time, after the optimization is done when you have the minimal location for x. This last ti...

6 years ago | 0

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get several answers with solve
There is no analytical solution. syms x solve(cos(x)*cosh(x)+1==0) Warning: Unable to solve symbolically. Returning a numeric...

6 years ago | 0

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Want to find exact answer for symbolic variable polynomial factorization
You say this is a polynomial. It cannot be a polynomial in c or n, since c and n live in the exponentis of p. Therefore you are ...

6 years ago | 0

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Reduced Echelon form is wrong
A = [-2 2;-.4 .2]; [V,D] = eig(A) V = -0.974588432346814 -0.754384720454159 -0.224003097156669 ...

6 years ago | 0

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Making complex number to trigonometric formula
Since this is clearly homework... Hint: what does angle do? (atan2 would also suffice, but then you would need to know how to e...

6 years ago | 0

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Answered
Find the volume under a 3D surface
Since this appears to be a gridded surface, then you can just use trapz, twice. Call it once on the x dimension, and once on the...

6 years ago | 0