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Optimization of a series of linear equations to maximize profit
They are not differential equations. So I'm not sure what you were possibly thinking. They are LINEAR equations. But you do no...

fast 5 Jahre vor | 0

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Approximate dots area by circle and define its radius
You cannot do anything until you decide what you need to do. You say to need to approximate it with a circle. If the circle wer...

fast 5 Jahre vor | 0

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plotting number bigger than double realmax
If your numbers are greater than realmax, then you can't. Period. You cannot represent a number greater than realmax. You cannot...

fast 5 Jahre vor | 0

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How do I calculate a logarithm of a variable base?
Just write your own function. Save it on your search path. Now you have it. [log(10),logb(10)] % natural log [log10(5),logb(5,...

fast 5 Jahre vor | 1

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How to read a very large number, say of 700 digits?
You don't understand. A 700 digit number is not representable in double precision. Even if it were, then roughly 684 of those di...

fast 5 Jahre vor | 1

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How to obtain the 3 × 3 symmetric covariance matrix of a 3x1 matrix?
If all you have are three numbers, then a covariance matrix is meaningless. There are two cases we might consider, since I have ...

fast 5 Jahre vor | 0

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How to plot three variables in matlab?? A*cos(w*t+theta)
It certainly is possible. All you need is a multi-dimensional holographic monitor to view it. Sadly, these are hard to come by, ...

fast 5 Jahre vor | 2

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Stop Bit growth for power computation
Case 1: You CANNOT raise a double precision number to a power such that it exceeds flintmax (2^53 - 1) and expect the result to ...

fast 5 Jahre vor | 1

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Unable to find solution to matrix using Gauss Seidal code. How should I proceed to get the solution?
By the way, the name is spelled Seidel, not Seidal. https://en.wikipedia.org/wiki/Gauss–Seidel_method A=[-0.707 -1 0 0 0 0 0 -...

fast 5 Jahre vor | 1

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Is there any alternate ways to make payment while registering for MATLAB associate certification
This is not a question for Answers, but a question to pose DIRECTLY TO THE MATHWORKS. Answers is a user supported site. We are a...

fast 5 Jahre vor | 0

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Writing a math equation.
Good. You made an effort, did some reading. Not only that, but you are trying things, getting your hands dirty. Keep that up and...

fast 5 Jahre vor | 0

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How to determine the coefficient from the argmin function ?
What you need to unerstand is there is NO simple solution. There are no unique set of values a1, b1, c1 that solve the problem. ...

fast 5 Jahre vor | 1

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Solve Equation which has 2 solutions but returns imaginary numbers
Super-complicated? Seriously? :) NOT. But I suppose complexity is in the eyes of the beholder. Start with this: Theta=[ 15] T...

fast 5 Jahre vor | 0

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Unique values for each sequence
Hint: What does diff give you? TRY IT! x = [1 1 1 1 2 2 1 1 1 3 3 3 2]; diff(x) What would happen if we tried find on that re...

fast 5 Jahre vor | 2

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Hi Guys.. I need to print X values from intlinprog output from all 24 iterations as a matrix, when am trying to assign the values to A matrix its not happening. PLz help
Of course, we cannot answer your question in more depth, since you have not provided your data. But if we look at the screenshot...

fast 5 Jahre vor | 2

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normpdf is taking zeros
No. At least, not in double precision. The "exact" value there is impossible to represent in a double precision number. The nor...

fast 5 Jahre vor | 0

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How to reduce computation time with 8 nested for loop
This is why there are optimization tools provided. Use them, instead of brute force search. But really, this is a combinatorial...

fast 5 Jahre vor | 0

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How to put vector components into one single matrix and instead having them appear as two separate arrays
A very confusing question. But what about this does not do as you want? syms x y A = [2*x 1; 2 x*y] Admittedly, that is as sh...

fast 5 Jahre vor | 2

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How to find the exact answer of an exponential equation?
syms t real Eqn = exp(-0.04*t)+exp(-0.12*t) - 1; Write it like that. I did so because now we can plot it. See that I specified...

fast 5 Jahre vor | 0

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Increase arithmetic precision in using Cardano formula
Either use roots to solve for the roots of the quartic, or be forced to use symbolic form for the solutions. Note that roots wil...

fast 5 Jahre vor | 0

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Chosing the step between lower bound and upper bound in genetic algorithm
Actually, this is simple. even trivial. Can you force a variable to take on integer valiues in GA? (yes) In the help for GA, I...

fast 5 Jahre vor | 0

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how to find the root of function?
Or do this: alpha=0.74; g =0.5; gamma=1.2; sigma=1; phi=0.8; epsilon_1=1.5; w_r= (epsilon_1-1)/epsilon_1; syms n_h a ...

fast 5 Jahre vor | 0

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Optimizing 1 equation with 7 variables
You do understand this is likely impossible to do? If there are ANY solutions which satisfy the given equality, then there are ...

fast 5 Jahre vor | 1

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Collatz Conjecture using for loop
Your code is close to a working algorithm. There are some issues truly good code would worry about. Could you ever have an over...

fast 5 Jahre vor | 3

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Hi everyone, i want to ask about curve fitting problem,
Invariably the data will vary by multiple orders of magnitude in such a problem. And that tends to imply the noise in your data ...

fast 5 Jahre vor | 1

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Use a while loop to determine how many Fibonacci numbers are less than 100000.
What does your test do? That is... while x < 100000 Answer it tells when the INDEX of the Fibonacci number is less than 100000...

fast 5 Jahre vor | 0

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I have a Matrix , and I want to multiply this Matrix with something so I can get zeros
Please stop posting answers when you are making only comments. In what you claim to have tried: A=[-3 6 -1 1 7;1 -2 2 3 -1;2 -...

fast 5 Jahre vor | 0

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How to solve an equation system using a interp1-variable
interp1 is incompatible with symbolic parameters. You CANNOT use interp1 with solve. Period. So wherever you found that snippet ...

fast 5 Jahre vor | 0

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I have the following code to calculate d/dx sin(0.5)) using first derivative principle and compare it with the real value. Why does err starts increasing again?
What are you doing? You used a simple forward difference to compute the derivative, as an approximation to the derivative of sin...

fast 5 Jahre vor | 1

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The running time of binary integer linear programming and linear programming
Why is there something "wrong"? It is unexpected for you. But this just comes down to two different problems, solved by differen...

fast 5 Jahre vor | 0

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