1 The exponentiation and exponentiation assignment operands allow raising 2 the base operand value to the given power. 3 4 5 1. The `**` operator returns the result of raising the first operand to 6 the power of the second operand. 7 8 -- Expect stdout -- 9 [ 10 1, 11 4, 12 9223372036854775808, 13 -9223372036854775808, 14 -0.25, 15 2.7556759606311 16 ] 17 -- End -- 18 19 -- Testcase -- 20 {% 21 printf("%.J\n", [ 22 2 ** 0, 23 2 ** 2, 24 2 ** 63, 25 -2 ** 63, 26 -2 ** -2, 27 1.5 ** 2.5 28 ]); 29 %} 30 -- End -- 31 32 33 2. The `**=` operator raises the lhs variable or field value to the 34 power value in the rhs expression. 35 36 -- Expect stdout -- 37 [ 38 4, 39 -0.25, 40 2.7556759606311 41 ] 42 -- End -- 43 44 -- Testcase -- 45 {% 46 x = 2; 47 y = -2; 48 z = 1.5; 49 50 x **= 2; 51 y **= -2; 52 z **= 2.5; 53 54 printf("%.J\n", [ x, y, z ]); 55 %} 56 -- End --
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