Skip to main content
KratosMath's user avatar
KratosMath's user avatar
KratosMath's user avatar
KratosMath
  • Member for 7 years, 8 months
  • Last seen more than a month ago
18 votes
6 answers
5k views

Why squaring the trigonometric equation changes the solution?

14 votes
4 answers
8k views

The difference between applying a rotation matrix to a vector (points) and to a matrix (transformation)

3 votes
1 answer
127 views

How to explain this point transformation?

2 votes
1 answer
105 views

How to deduce that the rotation matrix is constant from the following?

2 votes
0 answers
128 views

Deriving Potential from the Weak Form.

2 votes
1 answer
161 views

Is it possible to obtain the closed-form expression of this differential equation?

2 votes
1 answer
879 views

What is the physical meaning of the sum of entries of the Hadamard product of two matrices?

2 votes
1 answer
415 views

What is the Pade approximation of the matrix logarithm?

1 vote
2 answers
334 views

How to check the convexity of this function?

1 vote
2 answers
55 views

Does this trig system have a solution?

1 vote
3 answers
602 views

Derivative of the Euclidean norm with respect to matrix?

1 vote
1 answer
319 views

How to derive this augmented Lagrangian function?

1 vote
1 answer
48 views

How to find the following sine function

0 votes
2 answers
216 views

Check the convexity of a function with respect to a matrix.

0 votes
2 answers
46 views

How to prove that $(\exp (\textbf{A}))^{-x}$ is equal to $\exp (-x \textbf{A})$

0 votes
1 answer
24 views

How to get the second expression from the first one?

0 votes
0 answers
249 views

How to differentiate an expression with respect to a symmetric matrix?

0 votes
1 answer
96 views

How to derive the heat equation from the laws of thermodynamic?

0 votes
0 answers
49 views

The concept of convexity of a function with respect to a variable

0 votes
1 answer
12 views

Creating a local smooth reductive function.

0 votes
0 answers
66 views

What is the best smooth approximation of the two-variables absolute function $f=|x|+|y|$?

0 votes
1 answer
52 views

How to derive this complex differentiation?

0 votes
1 answer
70 views

Find a way to solve the following differential equation!