====== 已知:x^x = 2^2048,求x ====== 已知: x^x = 2^2048 求x. ===== 解 ===== 2^2048 = 2^(2*1024) = (2^2)^1024 = 4 ^ 1024 以此类推: 2^2048 = 4 ^ 1024 = 16 ^ 512 = 256 ^ 256 故 x=256