✦ GOLDEN
φ
enter one — get all three
a (larger)
b (smaller)
sum (a+b)
enter
a
larger
a (larger)
×φ
100.00
b (smaller)
÷φ
61.80
sum (a+b)
161.80
ratio a / b
1.6180339887
✦ GOLDEN
📋 COPY
↺ RESET
golden rectangle
a=100.0 b=61.8
spiral with φ
φ = (1+√5)/2 = 1.618033988749895…