src/test/java/com/seaofnodes/simple/spill/Chapter20Test-testNewtonInteger.smp


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// Newtons approximation to the square root
val _sqrt = { int x ->
    int guess = x;
    while( 1 ) {
        int next = (x/guess + guess)/2;
        if( next == guess ) return guess;
        guess = next;
    }
};
return _sqrt(arg) + _sqrt(arg+2);