Answered

How can I create a function with random imputs? I have to create a function called tri_area that returns the area of a triangle with abse b and heigh h, where b and h are input arguments of the function in that order

I think you may be confused. I believe what is asked is for a function with ARBITRARY inputs, in the sense it can be called with...

How can I create a function with random imputs? I have to create a function called tri_area that returns the area of a triangle with abse b and heigh h, where b and h are input arguments of the function in that order

I think you may be confused. I believe what is asked is for a function with ARBITRARY inputs, in the sense it can be called with...

36 Minuten ago | 0

Answered

The accuracy on my LSTM deep learning neural network will not exceed 62.96%

You have shown no data, so we cannot truly say if you are doing something wrong. However, it sounds as it what you are doing is:...

The accuracy on my LSTM deep learning neural network will not exceed 62.96%

You have shown no data, so we cannot truly say if you are doing something wrong. However, it sounds as it what you are doing is:...

etwa eine Stunde ago | 0

Answered

how can i get a number as an answer?

You got a number. :) I know, its net a very useful looking number. As s floating point sym, use vpa. vpa((23401992239682647381...

how can i get a number as an answer?

You got a number. :) I know, its net a very useful looking number. As s floating point sym, use vpa. vpa((23401992239682647381...

etwa eine Stunde ago | 0

Answered

why does similar code generate complex numbers?

What, for example, are the THREE cube roots of a negative number? We can find them all as solutions to the equation syms x xs...

why does similar code generate complex numbers?

What, for example, are the THREE cube roots of a negative number? We can find them all as solutions to the equation syms x xs...

2 Tage ago | 0

Answered

Is there a tool for drawing diagrams that connect equations?

I don't think there is a tool in MATLAB that will take a set of equations in arbitrary order, and then create this diagram. Yo...

Is there a tool for drawing diagrams that connect equations?

I don't think there is a tool in MATLAB that will take a set of equations in arbitrary order, and then create this diagram. Yo...

2 Tage ago | 0

Answered

How can ı solve this constraint optimization problem?

Many things you can do, but since this is your homework, and there are already answrs posted, I'll just suggest a couple of thin...

How can ı solve this constraint optimization problem?

Many things you can do, but since this is your homework, and there are already answrs posted, I'll just suggest a couple of thin...

2 Tage ago | 0

Answered

USING MEX TO SPEED UP THE CODE

As a counterpoint, there are some issues to consider. Much of MATLAB is already compiled code, at least in the hard working part...

USING MEX TO SPEED UP THE CODE

As a counterpoint, there are some issues to consider. Much of MATLAB is already compiled code, at least in the hard working part...

2 Tage ago | 1

| accepted

Answered

help solving differential equations

I think you have multiple problems here, now that you claim to have the correct equation. DSOLVE finds an analytical solution to...

help solving differential equations

I think you have multiple problems here, now that you claim to have the correct equation. DSOLVE finds an analytical solution to...

2 Tage ago | 0

Answered

Simplifying a algebraic or numeric expression to lowest possible power

The problem is, there are multiple solutions, because sqrt is not as simple a thing as you like. syms x >> y = sqrt(x.^2) y ...

Simplifying a algebraic or numeric expression to lowest possible power

The problem is, there are multiple solutions, because sqrt is not as simple a thing as you like. syms x >> y = sqrt(x.^2) y ...

2 Tage ago | 0

| accepted

Answered

Install 2 instances of Matlab on the same PC

Yes, and no. I frequently have several old versions of MATLAB on my computer. Walter has many as I recall. The only issue is if ...

Install 2 instances of Matlab on the same PC

Yes, and no. I frequently have several old versions of MATLAB on my computer. Walter has many as I recall. The only issue is if ...

2 Tage ago | 0

| accepted

Answered

Is there any method to calculate the inverse of matrix which changed a few values?

Bruno is correct in how to solve the problem, and also SOME of the issues with it. If you use this tool multiple times, the floa...

Is there any method to calculate the inverse of matrix which changed a few values?

Bruno is correct in how to solve the problem, and also SOME of the issues with it. If you use this tool multiple times, the floa...

2 Tage ago | 0

| accepted

Answered

wrong differential equation solution

Sorry. I don't know what you did incorrectly, but here is what I see. syms y(t) yalpha = (1/80)*(36*exp(-t) + 125*sin(t) -3*...

wrong differential equation solution

Sorry. I don't know what you did incorrectly, but here is what I see. syms y(t) yalpha = (1/80)*(36*exp(-t) + 125*sin(t) -3*...

3 Tage ago | 1

| accepted

Answered

How to limit calculation precision?

There are only two standard choices in MATLAB for floating point computations, and two ways to get round the problem. That is,...

How to limit calculation precision?

There are only two standard choices in MATLAB for floating point computations, and two ways to get round the problem. That is,...

3 Tage ago | 1

Answered

Question about Anderson-Darling (adtest)

Not using adtest. Like the Ford Model T, which Henry Ford sold in any color as long as the color you wanted was black, adtest te...

Question about Anderson-Darling (adtest)

Not using adtest. Like the Ford Model T, which Henry Ford sold in any color as long as the color you wanted was black, adtest te...

3 Tage ago | 1

| accepted

Answered

Problem of ``sprandn'': the number of nonzero elements is inconsistent with density

Bruno has already explained why sprand/sprandn fail to produce the requested density of arrays. So this answer is here only to a...

Problem of ``sprandn'': the number of nonzero elements is inconsistent with density

Bruno has already explained why sprand/sprandn fail to produce the requested density of arrays. So this answer is here only to a...

3 Tage ago | 1

Answered

How to place a number (1) in a random position in Line 1 in a matrix of zeros?

M = zeros(10,10); M(1,randi(10)) = 1; However, if you had no idea how to solve a basic problem of matrix indexing, you REALLY ...

How to place a number (1) in a random position in Line 1 in a matrix of zeros?

M = zeros(10,10); M(1,randi(10)) = 1; However, if you had no idea how to solve a basic problem of matrix indexing, you REALLY ...

4 Tage ago | 1

Answered

find the std of each parameter after lsqlin

There are some issues that make this a little problematic. The main issue is if lsqlin finds itself butted up against a boundary...

find the std of each parameter after lsqlin

There are some issues that make this a little problematic. The main issue is if lsqlin finds itself butted up against a boundary...

4 Tage ago | 0

| accepted

Answered

How do I remove the z variable in the polynomial equation?

What you don't understand is that IF you did what you want, the polynomial will become diffcult to use and difficult to evaluate...

How do I remove the z variable in the polynomial equation?

What you don't understand is that IF you did what you want, the polynomial will become diffcult to use and difficult to evaluate...

4 Tage ago | 1

| accepted

Answered

Can one run fminsearch on grids?

No. fminsearch presumes a continuously valued function, defined everywhere. You CANNOT use it to solve discrete problems. And ev...

Can one run fminsearch on grids?

No. fminsearch presumes a continuously valued function, defined everywhere. You CANNOT use it to solve discrete problems. And ev...

4 Tage ago | 0

| accepted

Answered

Why is 4-by-2 matrix compatible with 4-by-1 vector?

You are using .* to do the multiplication. NOT * which is the linear algebra operator. MATLAB extends the vector implicitly int...

Why is 4-by-2 matrix compatible with 4-by-1 vector?

You are using .* to do the multiplication. NOT * which is the linear algebra operator. MATLAB extends the vector implicitly int...

5 Tage ago | 0

Answered

Fitting a Curve to an Uncurling Object

The curve fitting toolbox assumes the functions are SINGLE VALUED. There can only be ONE value of y for any x. If that is not tr...

Fitting a Curve to an Uncurling Object

The curve fitting toolbox assumes the functions are SINGLE VALUED. There can only be ONE value of y for any x. If that is not tr...

5 Tage ago | 0

Answered

How fast is fminsearch over brute force? or How fminsearch deal with a local/global min?

How fast is it? Since brute force is an extremely poor method to solve anything (unless your name happens to be the incredible H...

How fast is fminsearch over brute force? or How fminsearch deal with a local/global min?

How fast is it? Since brute force is an extremely poor method to solve anything (unless your name happens to be the incredible H...

5 Tage ago | 0

| accepted

Answered

How to reduce dimension of griddedinterpolant?

whos Name Size Bytes Class Attributes eff_map 500x500 2000000 double ...

How to reduce dimension of griddedinterpolant?

whos Name Size Bytes Class Attributes eff_map 500x500 2000000 double ...

5 Tage ago | 0

| accepted

Answered

GA vs patternsearch for Integer problem with equality constraints

An exitflag of -2 means that GA never even found a feasible starting point for your problem. A larger population size lets it ra...

GA vs patternsearch for Integer problem with equality constraints

An exitflag of -2 means that GA never even found a feasible starting point for your problem. A larger population size lets it ra...

6 Tage ago | 1

Answered

Can one run fminsearch for a function defined by cases?

Can you? Yes. Should you? This may sometimes be a poor idea, although it depends on the specific segment functions. Are the seg...

Can one run fminsearch for a function defined by cases?

Can you? Yes. Should you? This may sometimes be a poor idea, although it depends on the specific segment functions. Are the seg...

6 Tage ago | 1

Answered

Generating parings of numbers and the pairs must not contain the same numbers

As Bruno has said, you are looking for pseudo-random derangements. So just to add some interesting information about derangement...

Generating parings of numbers and the pairs must not contain the same numbers

As Bruno has said, you are looking for pseudo-random derangements. So just to add some interesting information about derangement...

6 Tage ago | 0

Answered

Int returns Int when decimals input

fw = ((k*l*vi)/c)*(((1+p*l)*vi)/c)^(k-1)*exp(-((1+p*l)*vi)/c)^k ; When k is some non-integer value, you are raising some non-tr...

Int returns Int when decimals input

fw = ((k*l*vi)/c)*(((1+p*l)*vi)/c)^(k-1)*exp(-((1+p*l)*vi)/c)^k ; When k is some non-integer value, you are raising some non-tr...

7 Tage ago | 1

| accepted

Answered

How to solve linear programming problem?

Second answer, since the problem has now completely changed. Again, MATLAB is still totally unnecessary. Since you will probabl...

How to solve linear programming problem?

Second answer, since the problem has now completely changed. Again, MATLAB is still totally unnecessary. Since you will probabl...

7 Tage ago | 0

Answered

Why is it the answer from MATLAB is different from the other solving software? Where did I go wrong?

Usually when I see a confused question, where someone says "help, i got a strange answer", the reason is because they were not c...

Why is it the answer from MATLAB is different from the other solving software? Where did I go wrong?

Usually when I see a confused question, where someone says "help, i got a strange answer", the reason is because they were not c...

7 Tage ago | 1

| accepted

Answered

Extraction of values from a cfit object

When you do not know how to pull some information from a class, the best thing is to try using methods to learn what you can do....

Extraction of values from a cfit object

When you do not know how to pull some information from a class, the best thing is to try using methods to learn what you can do....

7 Tage ago | 0