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Cool answers:

Is $dy/dx$ not a ratio?


48 Answers

newest activity votes
4
Basic question about $\sup_{x\neq 0}{} \frac{\|Ax\|}{\|x\|} = \sup_{\|x\| = 1}{\|Ax\|} $, $x \in\mathbb{R}^n$
4
Singular Matrix Problem
4
Inconsistent System of Linear Equations
3
Math school online?
3
REVISITED$^2$: Solution in $\mathbb{R}^n \overset{?}{\implies}$ Solution in $\mathbb{Q}^n$
3
Examples of systems conforming the Lorentz Attractor
3
What are the important theorems in the theory of dynamical systems?
3
solving linear matrix equation problem
3
How to get from high school math to optimization?
2
Necessary and sufficient conditions for differentiability.
2
Verify if set S is invariant for a given system.
2
Deducing asymptotically stability if $|f(x)| <|x|$
2
When is the geometric multiplicity of an eigenvalue smaller than its algebraic multiplicity?
1
Second order differential equation question.
1
Maximum of quasi-convex functions
1
Prove this property of the SVD
1
Simplify the nonlinear system of dynamic equations
1
Use linear stability analysis to classify the fixed points of the following system.$ f(x)=ax-x^3$ for $a>0$, $a=0$ and $a<0$.
1
Optimization theory. active set
1
Sequence Diverging: Where's My Mistake?
1
How to solve an underdetermined linear system with variables limited to an interval
1
Prove summation using induction
1
How do I explain this in a correct way?
1
PageRank algorithm. Iterative approach.
1
Impulse response of transfer function
1
Existence and uniqueness of system of ODEs
1
The common notation fo equlibrium point
1
Does a bound on a solution to an ODE allow for it to be defined over all $t \in \Bbb R$?
1
Eigenvalues of a matrix with only one non-zero row and non-zero column.
1
Video lectures on Real Analysis?
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