# datatable.math.golden¶

The golden ratio $$\varphi = (1 + \sqrt{5})/2$$, also known as golden section. This is a number such that if $$a = \varphi b$$, for some non-zero $$a$$ and $$b$$, then it must also be true that $$a + b = \varphi a$$.

The constant is stored with float64 precision, and its value is 1.618033988749895.