We’re all mad here. Or at least, mad for math. In fact, let’s all sing a cheer “Ready? Ok! Sine, Cosine, Cosine, Sine! 3 Point 14159!” I am so pumped right now!

 

Inspired by "Mathematical puns are the first sine of madness," a quote oft attributed to Johann Von Haupkopf.


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Reg. Price: $19.95
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