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add sum.scad

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Justin Lin
2020-02-26 12:32:26 +08:00
parent 2ec87b2287
commit 2598fb2be2
2 changed files with 5 additions and 0 deletions
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2
src/experimental/_impl/_sum_impl.scad Normal file
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@@ -0,0 +1,2 @@
function _sum_impl(lt, leng, i = 0) =
i == leng - 1 ? lt[i] : (lt[i] + _sum_impl(lt, leng, i + 1));

3
src/experimental/sum.scad Normal file
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@@ -0,0 +1,3 @@
use <experimental/_impl/_sum_impl.scad>;
function sum(lt) = _sum_impl(lt, len(lt));