As Father’s Day approaches, you’ve no doubt started looking for the perfect gift for your pops. No matter what kind of dad calls you his kiddo, we’ve got something he’ll love.
We plan to break down the dad-egories and give you gift ideas for all kinds of paternal persons, but today we’re getting things started with gifts for the Geek Dad.
Like your dad, this brass pocket watch is smart and stylish. The watch features a classic cover, to protect the face while its in dad’s pocket. Whether he’s a math geek or just a fan of the unique, he won’t be able to wait to open it up and show off the equations within.
Numerically inclined dads may want to spend some time solving each equation, but if your dad would rather check someone else’s work, he can read The Geek Watch Decoded and see how another dad did the math!
If your dad is tech-savvy, chances are he’s always looking for new techie gadgets and gizmos. The USB Card Pen is the perfect combination of a classic Father’s Day Gift (a pen) and something a little more modern (a USB flash drive).
Or, perhaps dad would love another classic gift with a modern twist, the iBottle Opener. But if you’re not quite ready for messages from your pa to show up on When Parents Text, feel free to check out some of our other geeky gadgets.
Father knows best, so he might enjoy reading some humorous excerpts from those who got it wrong. The answers may not be correct in the traditional sense, but they do get bonus points for creativity.
F in Exams will make your dad smile all on its own, or it can be paired with one of our other gifts for geeks if you’re looking for extra credit!
![\sqrt[3]{1728}](http://s0.wp.com/latex.php?latex=%5Csqrt%5B3%5D%7B1728%7D&bg=fafad3&fg=6F5E4E&s=0 "\sqrt[3]{1728}")
![\sqrt[3]{3*576}](http://s0.wp.com/latex.php?latex=%5Csqrt%5B3%5D%7B3%2A576%7D&bg=fafad3&fg=6F5E4E&s=0 "\sqrt[3]{3*576}")
(Dividing by three)![\sqrt[3]{3*4*144}](http://s0.wp.com/latex.php?latex=%5Csqrt%5B3%5D%7B3%2A4%2A144%7D&bg=fafad3&fg=6F5E4E&s=0 "\sqrt[3]{3*4*144}")
(Dividing by four)![\sqrt[3]{3*4*12*12}](http://s0.wp.com/latex.php?latex=%5Csqrt%5B3%5D%7B3%2A4%2A12%2A12%7D&bg=fafad3&fg=6F5E4E&s=0 "\sqrt[3]{3*4*12*12}")
(I know what twelve times twelve is)![\sqrt[3]{12*12*12}](http://s0.wp.com/latex.php?latex=%5Csqrt%5B3%5D%7B12%2A12%2A12%7D&bg=fafad3&fg=6F5E4E&s=0 "\sqrt[3]{12*12*12}")
(That’s three of them 
and the cube root is easy now)
or 
is equal to the number of prime numbers less than the number n.
And the difference between these two numbers is some really deep math. Not the least of which (to me) is how to get that limit to go to 1 
given the approximation that follows it.
