Ask HN: What is your favorite equation?

Re:Ask HN: What is your favorite equation? by pacaro on Saturday December 24, 2016 @12:25AM (#13248709)

When I first started chatting online with the woman to whom I'm married, she told me that she had a single tattoo, and that it was of an equation.

I immediately guessed Euler's identity and wrote "$e^{i\pi}+1=0$"

That was when we knew it was serious.

I got lucky (in more ways than one) because she'd nearly gone with her other choice, the continuum hypothesis

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Re:Ask HN: What is your favorite equation? by kurthr on Saturday December 24, 2016 @01:39AM (#13248897)

Euler's equation is cool... Written properly it contains addition, negation, multiplication, exponentiation, the imaginary unit, the additive identity, the multiplicative identity, the natural anti-derivative identity, and two irrational transcendental numbers in a most compact form with holomorphic continuity.

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Re:Ask HN: What is your favorite equation? by davidme2 on Saturday December 24, 2016 @02:31AM (#13249005)

Was this a random stranger you started chatting with online or did you know her in real life before?

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Re:Ask HN: What is your favorite equation? by pacaro on Saturday December 24, 2016 @10:30AM (#13250129)

We had exchanged messages on okcupid and had progressed to gchat. At the time she was in New York and I was in Seattle

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Re:Ask HN: What is your favorite equation? by curiousgal on Saturday December 24, 2016 @01:18PM (#13250934)

A success story, congratulations!

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