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Mathematics
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Kay
  • Member for 5 years, 11 months
  • Last seen more than 1 year ago
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8
How to know if vector is in column space of a matrix?
Jan 5, 2019
5
Is a square zero matrix positive semidefinite?
Mar 18, 2019
4
Does $f{(x)} = a x^4 - x^3 + ax - a$ have exactly $1$ positive root given $a>0$?
Dec 26, 2019
3
Can we obtain min $\mathbf{x}$ in $\Vert A - B(I\otimes \mathbf{x})\Vert_F^2$ algebraically?
Aug 31, 2020
2
Physical meaning of transformation with symmetric matrices [duplicate]
Aug 21, 2018
2
Hadamard product derivative
Feb 17, 2019
2
Are there applications of equivalent matrices?
Feb 23, 2019
2
Addition of different bases raised to the same power (solve for power). Is power determined uniquely?
Mar 15, 2019
2
Reason: non-integer powers of Hermitian matrix not Hermitian?
Mar 17, 2019
2
Let $\text{trace}(AM)\ge0$ where $M$ is psd, is $\text{trace}(A)\ge0$?
Aug 9, 2019
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7
Solve for value when expr is a list