Tags » Frumpy

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happy tuesday to you!

i am happier today. mondays kinda suck even when you’re on vacation? the library is always closed on mondays, so i’m glad it’s tuesday now and i am happily typing away on my blog at the library. 378 more words

Direction Field and Trajectories

I am wondering how to draw a direction field and trajectories of a system of linear equations:

$$ x’= \left[
\begin{array}{ c c }
4 & -2 \\ 78 more words



frump is defined as dowdy and old-fashioned.  That’s ok with me!  :)