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Merge remote-tracking branch 'upstream/master'

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Adrian Mariano
2021-10-20 23:39:52 -04:00
parent 76272d9d9a 6f1ac73d59
commit c98dc64d20
5 changed files with 339 additions and 305 deletions
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13
math.scad
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@@ -689,17 +689,12 @@ function _sum(v,_total,_i=0) = _i>=len(v) ? _total : _sum(v,_total+v[_i], _i+1);
// cumsum([[1,2,3], [3,4,5], [5,6,7]]); // returns [[1,2,3], [4,6,8], [9,12,15]]
function cumsum(v) =
assert(is_consistent(v), "The input is not consistent." )
_cumsum(v,_i=0,_acc=[]);
len(v)<=1 ? v :
_cumsum(v,_i=1,_acc=[v[0]]);
function _cumsum(v,_i=0,_acc=[]) =
_i==len(v) ? _acc :
_cumsum(
v, _i+1,
concat(
_acc,
[_i==0 ? v[_i] : last(_acc) + v[_i]]
)
);
_i>=len(v) ? _acc :
_cumsum( v, _i+1, [ each _acc, _acc[len(_acc)-1] + v[_i] ] );
// Function: sum_of_sines()