sqrt function

double sqrt(
  1. num x
)

Converts x to a double and returns the positive square root of the value.

Returns -0.0 if x is -0.0, and NaN if x is otherwise negative or NaN.

var result = sqrt(9.3);
print(result); // 3.0495901363953815
result = sqrt(2);
print(result); // 1.4142135623730951
result = sqrt(0);
print(result); // 0.0
result = sqrt(-2.2);
print(result); // NaN

Implementation

external double sqrt(num x);