examples/bigdecimal.av

## examples/bigdecimal.av

let a = 2M;
let err = 1e-15M;
let root = a;

p("type of a is: #{type(a)}");
p("type of err is: #{type(err)}");

while math.abs(a - root * root) > err {
  root = (a/root + root) / 2.0M;
}

p("square root of 2M is: #{root}");