zepdrix
 Name:
 Joseph
 School:
 Daytona State College, University of Central Florida
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 Hi :)
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0 
Questions Asked

zepdrix:
Group Title
Matrix/Linear Algebra:
Need help finding Eigenvalues.
\[\Large \left[\begin{matrix} 0& 0& 1 \\ 0& 1& 0 \\ 1& 0& 0 \end{matrix}\right]\]
 updated 3 days ago
 8 replies
 4 Medals
Mathematics

zepdrix:
Group Title
Matrix and Linear: Finding Eigenvalues.
\[\Large\rm \left[\begin{matrix} 3& 4& 0& 0\\ 4& 3& 0& 0\\ 0& 0& 1& 3\\ 0& 0& 4& 5\end{matrix}\rig…
 updated 7 days ago
 23 replies
 5 Medals
Mathematics

zepdrix:
Group Title
OpenStudy won't load on my Chrome browser as of a couple days ago.
I had to post this from Firefox :( Yuck..
…
 updated 2 months ago
 7 replies
 1 Medal
Mathematics

zepdrix:
Group Title
Consider the forced Van der Pol oscillator equation:
\[\Large\bf\sf x''\mu(1x^2)x'+x\quad=\quad A \sin(\omega t)\]
with \(\large \mu= 8.…
 updated 9 months ago
 6 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Consider the forced Van der Pol oscillator equation:
\[\huge\bf\sf \ddot x\mu(1x^2)\dot x+x\quad=\quad A \sin(\omega t)\]
1. Express the…
 updated 9 months ago
 8 replies
 2 Medals
Mathematics

zepdrix:
Group Title
Can someone double check my derivatives please?
 updated 10 months ago
 24 replies
 2 Medals
Mathematics

zepdrix:
Group Title
(2x+3)^5
 updated 10 months ago
 112 replies
 1 Medal
Mathematics

zepdrix:
Group Title
I need a refresher on matrix multiplication (2x2 times a 2x2).
So I have these two matrices:\[\Large X^{1}(0)\quad=\quad \left[\begin{matr…
 updated 11 months ago
 10 replies
 1 Medal
Mathematics

zepdrix:
Group Title
Fun Question of the Day!
Difficulty Level ~ 10th grade.
…
 updated one year ago
 13 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Find the real vectors that are orthogonal to the given vectors:
\(\Large \left< 1 ,\; 1 ,\; 1 \right>\) and \(\Large \left< 1 ,\; 1 ,\; 0 …
 updated one year ago
 8 replies
 1 Medal
Mathematics

zepdrix:
Group Title
Fun math problem.
This was a cool little problem I saw at work today.
…
 updated one year ago
 36 replies
 4 Medals
Mathematics

zepdrix:
Group Title
Find the general solution of:\[\Large \vec x\;'\quad=\quad A\;\vec x\]Where,\[\Large A\quad=\quad \left[\begin{matrix}3 & 4 \\ 2 & 1\end{m…
 updated one year ago
 13 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Find the general solution of:\[\Large \vec {x}\;'\quad=\quad A\;\vec{x}\]
Where,\[\Large A\quad=\quad \left[\begin{matrix}0 & 1 & 0\\ 4 & 3…
 updated one year ago
 18 replies
 2 Medals
Mathematics

zepdrix:
Group Title
I need help with math stuffs :c
I was able to find the eigenvalues of this matrix, I can't seem to figure out the eigenvectors.
…
 updated one year ago
 13 replies
 2 Medals
Mathematics

zepdrix:
Group Title
Go away :o
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

zepdrix:
Group Title
PDE  Change of coordinate axes.
I'm confused how these second partials are calculated. Maybe someone can me remind me. I think it's from…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
First Order PDE  Burger's Equation
Solve,\[\Large u_t+u u_x=0, \qquad\qquad u(x,0)=x\]and sketch some of the characteristic lines.
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

zepdrix:
Group Title
>:O
 updated one year ago
 80 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Partial Differential Equations.
FirstOrder Linear Equations.
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Problems with Chrome
 updated one year ago
 30 replies
 1 Medal
Mathematics

zepdrix:
Group Title
Linear Algebra  Linear Transformations
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Why is there no consistency in regards to when this site is actually operational?
 updated one year ago
 10 replies
 6 Medals
Mathematics

zepdrix:
Group Title
This is a math question!
WOAH! There are these two huge cranes in my front yard!!
…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Good colors to type in.
 updated one year ago
 1 reply
 3 Medals
Mathematics

zepdrix:
Group Title
LaTeX Colors in Open Study
 updated one year ago
 14 replies
 5 Medals
Mathematics

zepdrix:
Group Title
Practicing c:
 updated one year ago
 10 replies
 1 Medal
Mathematics

zepdrix:
Group Title
Calculus 3, Need help with Product Notation.
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

zepdrix:
Group Title
Calculus 3 Problem: Use an nᵗʰtuple integral to find the volume enclosed by a hypersphere of radius r in n−dimensional space. Hint: The for…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

zepdrix:
Group Title
Calc 3 Problem  Tricky Integral
\[\int\limits_{0}^{\infty}\frac{ \arctan \pi x \arctan x }{ x } dx\]
 updated 2 years ago
 24 replies
 1 Medal
Mathematics