* To the power of

Two-argument form  See also one-argument form 'e' to power

Raises the left-hand argument to the power of the right-hand argument.

             2 * 3                   (2 to the power 3, or 2 cubed)
       8
             ¯1 * 2 3 4
       1 ¯1 1                        (¯1 to the power 2 3 4)
            2 * 0.5
       1.414213562                   (Square root of 2)
            2 4 6 8 16 * 2
       4 16 36 64 256                (Square of 2 4 6 8 16)
             ¯1*0.5                  (No unreal number result allowed)
       DOMAIN ERROR
             ¯1*0.5
               ^

If the right argument is negative, the result is the reciprocal of the result obtained from using a right argument which is the absolute value of the negative argument.

             2*¯3
       0.125
             ÷2*3                    (Reciprocal of 2*3)
       0.125

             ((⍳3)(2 2⍴⍳4))*2
        1 4 9  1  4
               9 16