* — Exponential / Exponent

Function. Ranks: 0 monadic, 0 0 dyadic

*Y: e^Y. Pervasive.

*0                ⍝ 1

X*Y: X^Y. Integral powers of exact operands stay exact.

2*3               ⍝ 8
2ₓ*¯3ₓ            ⍝ 1r8

Other powers use principal complex branches where needed.

¯1*0.5            ⍝ 0j1

See also function power ⍣.

Inverse

*⁻¹ is ⍟. With the right argument fixed, (*↢X)⁻¹Y is Y*÷X.

2*⁻¹8      ⍝ 3
(*↢2)⁻¹9   ⍝ 3