# Reference: sqrt

For real numbers, sqrt(x), where x ≥ 0, is the positive root to the equation a^2 = x with respect to a. For complex numbers z, sqrt(z) = exp( (1/2) ln(z)).

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For real numbers, sqrt(x), where x ≥ 0, is the positive root to the equation a^2 = x with respect to a. For complex numbers z, sqrt(z) = exp( (1/2) ln(z)).