Ahmed Nasr

Last seen: 4 years 前 | 自 2020 起处于活动状态

Followers: 0 Following: 0

统计学

排名
214,486
of 298,132

声誉
0

贡献数
6 个提问
0 个回答

回答接受率
100.0%

收到投票数
0

查看徽章

Feeds

提问

Calculation of the gradient of a function in BFGS Quasi-Newton Algorithm
I have a function that I want to minimize using the BFGS Quasi-Newton algorithm. If . are given. Also, is given, ...

5 years 前 | 1 个回答 | 0

1

个回答

提问

How can I use 'Least Squares Solver and Jacobian' instead of 'fminunc'?
I want to use Least Squares Solver and Jacobian instead of fminunc, but I don't know what is the required changes must be done i...

5 years 前 | 1 个回答 | 0

1

个回答

提问

Using 'fminunc', I receive Optimization completed because the size of the gradient is less than the value of the optimality tolerance.
I use 'fminunc' to find the value of B (2*4 matrix) that minimzes the difference between the corresponding elements in two vecto...

5 years 前 | 1 个回答 | 0

1

个回答

提问

How can I calculate the first derivative of a vector with respect to a matrix?
I have x = a*B*C, where x is 1*4 vector, a is 1*2 vector, B is 2*4 matrix, and C is 4*4 matrix. How can I calculate the first ...

5 years 前 | 1 个回答 | 0

1

个回答

提问

How to simulate the outage probability of user data rate versus signal to noise ratio?
I have 4 users, and I want to simulate the outage probability which is the probability of the user data rate is less than the pr...

5 years 前 | 1 个回答 | 0

1

个回答

提问

How can I optimize the value of a matrix?
I want to find the optimal B matrix (2*4 matrix) that makes the elements of beta_d (1*4 vector) which is a function of B matri...

5 years 前 | 1 个回答 | 0

1

个回答