Math Mug

What do Fibonacci numbers and your morning cup of joe have in common? Both represent a recurrence relation (if the morning cup of joe does not recur each morning, beware!). Celebrate this here-to-fore little known commonality with this delightful Math Mug, featuring the world's greatest equations on a 12 ounce, dishwasher safe mug. Perhaps then you, too, can benefit from the principle of least action.