Risposto

Why is it when I am adding a number to array, the single number overrides array

E=10.3*10^6; %psi Fty=68000; %psi Ftu=76000; %psi fnl=linspace(0,Ftu,250); e0=0.09; epu=e0-(Ftu/E); nt=log(epu/.002)/log(F...

Why is it when I am adding a number to array, the single number overrides array

E=10.3*10^6; %psi Fty=68000; %psi Ftu=76000; %psi fnl=linspace(0,Ftu,250); e0=0.09; epu=e0-(Ftu/E); nt=log(epu/.002)/log(F...

circa un mese fa | 1

Risposto

How to solve for the maximum or minimum value of a symbolic function

You need to understand that not ALL equations you can write down have an analytical solution. In fact, it is trivial to formulat...

How to solve for the maximum or minimum value of a symbolic function

You need to understand that not ALL equations you can write down have an analytical solution. In fact, it is trivial to formulat...

circa un mese fa | 0

Risposto

why use 0.008856 in Lab color space?

Its been a million years since I looked at those equations. But it seems likely to be almost trivial. They chose a point where t...

why use 0.008856 in Lab color space?

Its been a million years since I looked at those equations. But it seems likely to be almost trivial. They chose a point where t...

circa un mese fa | 2

Risposto

Get awnsers with infinity using matlab solver

No. I'm sorry, but you are wrong. You think of infinity as a number. It is not. Infinity is greater than any number. And, yes, M...

Get awnsers with infinity using matlab solver

No. I'm sorry, but you are wrong. You think of infinity as a number. It is not. Infinity is greater than any number. And, yes, M...

circa un mese fa | 0

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Risposto

Why does this function appear noisy?

Do you understand how floating point arithmetic works? That you only have a finite number of digits, and that when you subtract ...

Why does this function appear noisy?

Do you understand how floating point arithmetic works? That you only have a finite number of digits, and that when you subtract ...

circa un mese fa | 0

| accettato

Risposto

Contour plot of cubic interpolation with set number of contour levels

Simple enough. You should have looked at the handle returned by plot. Though I guess it helps if you know what to look for. ;-) ...

Contour plot of cubic interpolation with set number of contour levels

Simple enough. You should have looked at the handle returned by plot. Though I guess it helps if you know what to look for. ;-) ...

circa un mese fa | 2

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Risposto

how to create function for below objective function.

Your objective function has three unknown variables in it, so z1, z2, and w. But an optimizer MUST have it as a vector of length...

how to create function for below objective function.

Your objective function has three unknown variables in it, so z1, z2, and w. But an optimizer MUST have it as a vector of length...

circa un mese fa | 0

Risposto

Why does fitlm say my "design matrix is rank deficient to within machine precision" despite my design matrix being full rank?

Funny. I was sure within a second of reading your question what you had done wrong. And I think you will probably say, Oh. Yeah....

Why does fitlm say my "design matrix is rank deficient to within machine precision" despite my design matrix being full rank?

Funny. I was sure within a second of reading your question what you had done wrong. And I think you will probably say, Oh. Yeah....

circa un mese fa | 0

Risposto

Find the m of nonlinear equation without initial input m. Please help me, my supervisor ask me to find m without input initial m from right. I know this is nonlinear equation.

Not homework, but barely any effort made. Sigh. This is apparently your job. You need to start learning MATLAB. sigma = [ 137....

Find the m of nonlinear equation without initial input m. Please help me, my supervisor ask me to find m without input initial m from right. I know this is nonlinear equation.

Not homework, but barely any effort made. Sigh. This is apparently your job. You need to start learning MATLAB. sigma = [ 137....

circa un mese fa | 0

Risposto

Global optimization strategy with local interpolation

You want to use a high dimensional local interpolation method, so in 6 dimensions. Since you are using it to find a local optimu...

Global optimization strategy with local interpolation

You want to use a high dimensional local interpolation method, so in 6 dimensions. Since you are using it to find a local optimu...

circa un mese fa | 0

Risposto

Help explain interpolated surface coloring

Without looking deeply into the method used to interpolate, I can't absolutely know what their code does. However, I do deeply u...

Help explain interpolated surface coloring

Without looking deeply into the method used to interpolate, I can't absolutely know what their code does. However, I do deeply u...

circa un mese fa | 3

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Risposto

Solve more complex problems in matlab

Can you just throw it at solve, and hope solve can figure out what is your question? Probably not. A tool like solve is not that...

Solve more complex problems in matlab

Can you just throw it at solve, and hope solve can figure out what is your question? Probably not. A tool like solve is not that...

circa un mese fa | 0

Risposto

Solve equation with multiple variables

Let me explain SOME of the the mathematics here. First, you have 4 equations, in 4 unknowns. Typically, that means there is one...

Solve equation with multiple variables

Let me explain SOME of the the mathematics here. First, you have 4 equations, in 4 unknowns. Typically, that means there is one...

circa un mese fa | 0

Risposto

If I deactivate my llicense on one computer to try Matlab on my new computer, can I reactivate the old computer Matlab if the new computer Matlab does not work?

Well, yes. You can go back, even though we learned long ago that "You can't go home again", Thomas Wolfe may have fed us a littl...

If I deactivate my llicense on one computer to try Matlab on my new computer, can I reactivate the old computer Matlab if the new computer Matlab does not work?

Well, yes. You can go back, even though we learned long ago that "You can't go home again", Thomas Wolfe may have fed us a littl...

circa 2 mesi fa | 1

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Risposto

Plotting random number in a line

What is it that you want then? A plot requires TWO axes, TWO variables to be plotted, typically we might plot x versus y. My fi...

Plotting random number in a line

What is it that you want then? A plot requires TWO axes, TWO variables to be plotted, typically we might plot x versus y. My fi...

circa 2 mesi fa | 0

Risposto

How can I plot a hyperbola?

Just for kicks, we can do a little algebra. Start with the original form. syms x y eqn = 0.4829 == sqrt((95-x)^2-(0-y)^2)-sqrt...

How can I plot a hyperbola?

Just for kicks, we can do a little algebra. Start with the original form. syms x y eqn = 0.4829 == sqrt((95-x)^2-(0-y)^2)-sqrt...

circa 2 mesi fa | 0

Risposto

How reduce data from 3917x2 to 1868x2 without change the entire of graph?

Just take every other data point, if you just want to roughly reduce the size. But you say you want a specific length. So then y...

How reduce data from 3917x2 to 1868x2 without change the entire of graph?

Just take every other data point, if you just want to roughly reduce the size. But you say you want a specific length. So then y...

circa 2 mesi fa | 0

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Risposto

I want to start a youtube channel where i develop flight control algorithms. Which matlab license do i need?

You definitely want to contact support, as only they can answer your question. I am not a lawyer. However, it seems if you are ...

I want to start a youtube channel where i develop flight control algorithms. Which matlab license do i need?

You definitely want to contact support, as only they can answer your question. I am not a lawyer. However, it seems if you are ...

circa 2 mesi fa | 1

Risposto

How to filter out the noisy portion of contourf plot?

One basic rule that always applies to things like this. You DON'T want to smooth contours after you have found them. You can't t...

How to filter out the noisy portion of contourf plot?

One basic rule that always applies to things like this. You DON'T want to smooth contours after you have found them. You can't t...

circa 2 mesi fa | 0

Risposto

How to plot one curve and change color according to value

As ifs often the case, I am far too late to the party. :) But there are often many ways to solve a problem, so I like to be able...

How to plot one curve and change color according to value

As ifs often the case, I am far too late to the party. :) But there are often many ways to solve a problem, so I like to be able...

circa 2 mesi fa | 1

Risposto

why does this line of code give error- disp("The density of " + element ... + "is" + density). When i press the 'enter ' key after the 3 dots and rerun, it works.

Do this instead: disp("The Density of " + element + " is " + density) What did you write? disp("The Density of " + element .....

why does this line of code give error- disp("The density of " + element ... + "is" + density). When i press the 'enter ' key after the 3 dots and rerun, it works.

Do this instead: disp("The Density of " + element + " is " + density) What did you write? disp("The Density of " + element .....

circa 2 mesi fa | 0

Risposto

How to fit power-law to each column of data arranged in a table?

Why should it work? I see these lines: [fitresult, gof] = fit( xData, yData, ft, opts ); % Goodnes of the Fit R^2 result...

How to fit power-law to each column of data arranged in a table?

Why should it work? I see these lines: [fitresult, gof] = fit( xData, yData, ft, opts ); % Goodnes of the Fit R^2 result...

circa 2 mesi fa | 1

Risposto

To RESHAPE number of elements must not change

How do you fix it? Make sure you know what the size of your array is, before doing a reshape. This way when you do that reshape ...

To RESHAPE number of elements must not change

How do you fix it? Make sure you know what the size of your array is, before doing a reshape. This way when you do that reshape ...

circa 2 mesi fa | 0

Risposto

hi, find the value of x theoretically?

Do you assume that every expression you can write down has an analytical, neatly written algebraic solution? Surely not. Start ...

hi, find the value of x theoretically?

Do you assume that every expression you can write down has an analytical, neatly written algebraic solution? Surely not. Start ...

circa 2 mesi fa | 1

Risposto

Is a matrix with a condition number of 1e20 definitely more ill-conditioned than a matrix with a condition number of 1e19？

NO. There is effectively no significant difference between the two. At that point, you are into what are essentially random bit ...

Is a matrix with a condition number of 1e20 definitely more ill-conditioned than a matrix with a condition number of 1e19？

NO. There is effectively no significant difference between the two. At that point, you are into what are essentially random bit ...

circa 2 mesi fa | 1

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Risposto

How to generate vector with non-linear spacing?

It sounds like you want a deterministic, non-random set of points. You can use the inverse gaiussian CDF to do what you want. a...

How to generate vector with non-linear spacing?

It sounds like you want a deterministic, non-random set of points. You can use the inverse gaiussian CDF to do what you want. a...

circa 2 mesi fa | 2

| accettato

Risposto

Ordering multivariate polynomials by increasing higher order terms

The problem is, the symbolic toolbox does not use the term sequence you personally prefer. In fact, you can't control the sequen...

Ordering multivariate polynomials by increasing higher order terms

The problem is, the symbolic toolbox does not use the term sequence you personally prefer. In fact, you can't control the sequen...

circa 2 mesi fa | 0

Risposto

I'm doing an project in matlab software and my data set having more than 1 lakh images so can you prefer any best laptop for this processing in i7

I think you do not understand. Moving from an i5 to an i7 will improve things. Multiple cores, lots of memory will be nice, even...

I'm doing an project in matlab software and my data set having more than 1 lakh images so can you prefer any best laptop for this processing in i7

I think you do not understand. Moving from an i5 to an i7 will improve things. Multiple cores, lots of memory will be nice, even...

2 mesi fa | 0

Risposto

Multivariate regression for constrained dependent variables

Sorry. You CANNOT insure that y1+y2 == 1, EXACTLY. At least not if there is any noise in your data. All you can do is to use it...

Multivariate regression for constrained dependent variables

Sorry. You CANNOT insure that y1+y2 == 1, EXACTLY. At least not if there is any noise in your data. All you can do is to use it...

2 mesi fa | 0

Risposto

Using Matlab Runge Kutta Routine

"IT WON'T GO PAST THE FIRST INCREMENT". Lol. Exactly what do you think this does in the very beginning of the loop? for count ...

Using Matlab Runge Kutta Routine

"IT WON'T GO PAST THE FIRST INCREMENT". Lol. Exactly what do you think this does in the very beginning of the loop? for count ...

2 mesi fa | 0