Two 18s in the 1st ten digits of e as well......................

the golden ratio =

1.61803398875

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Rad

Deg

x!

Inv

sin sin⁻¹

ln e^x

π

cos cos⁻¹

log 10^x

e

tan tan⁻¹

√ x²

Ans Rnd

EXP

x^{y y}√x

(

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%

AC CE

7

8

9

÷

4

5

6

×

1

2

3

−

0

.

=

+

More info

Golden ratio - Wikipedia

https://en.wikipedia.org/wiki/Golden_ratio

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In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. The figure on the right illustrates the geometric relationship. Expressed algebraically, for quantities a and b with a > b > 0,. a + b a = a b = def φ , {\displaystyle