View source for Sum Distances To Origin With Nested Pattern Matching Assignment

=Previous Warmup=
This warmup is a variation of the [[Sum_Distances_To_Origin_With_Functions_Assignment|Sum Distances To Origin with Functions]] warmup.

=Background=
==SML==
[https://smlfamily.github.io/Basis/math.html#SIG:MATH.sqrt:VAL Math.sqrt(x)]

=Code To Implement=
{{SMLToImplement|sum_distances_to_origin|sum_distances_to_origin|warmup_sum_distances_to_origin_pattern}}

[https://smlfamily.github.io/Basis/math.html#SIG:MATH.sqrt:VAL Math.sqrt(v)]

 fun sum_distances_to_origin(xys : (real * real) list)

=Test=
{{SMLUnitTesting|run_sum_distances_to_origin_pattern_testing|warmup_sum_distances_to_origin_pattern}}