Euler’s identity is an equality found in mathematics ... include Euler's Formula and Euler's Theorem, both of which can mean different things depending on the context. According to the USNA ...

Euler's identity: Math geeks extol its beauty ... you'll need a new way to catch up on those articles you've been meaning to read. Here are the best options. A novel suggestion that complexity ...

When invited to elucidate its meaning, the visitor just chuckled. In fact, this equation, familiar to mathematicians and greatly admired for its elegance, is known as Euler’s Identity.