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Module:Ups and downs notation: Difference between revisions

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TallKite (talk | contribs)
autopatrolled, Sysops
4,192 edits
Undo revision 172567 by TallKite (talk)
Tag: Undo
TallKite (talk | contribs)
autopatrolled, Sysops
4,192 edits
Undo revision 172565 by TallKite (talk)
Tag: Undo
Line 20: Line 20:
--  [12] = {"D"}
--  [12] = {"D"}
-- }
-- }
function round(x)
  return x>=0 and math.floor(x+0.5) or math.ceil(x-0.5)
end


function p.get_note_names_table(et, fifth)
function p.get_note_names_table(et, fifth)
Line 67: Line 63:
last_diatonic_note = i
last_diatonic_note = i
else
else
local num_double_sharps = round((i - last_diatonic_note) / (2 * chroma))
local num_double_sharps = math.floor((i - last_diatonic_note) / (2 * chroma))
local num_sharps = round((i - last_diatonic_note) / chroma) % 2
local num_sharps = math.floor((i - last_diatonic_note) / chroma) % 2
local num_ups = (i - last_diatonic_note) % chroma
local num_ups = (i - last_diatonic_note) % chroma
if chroma == 0 then
if chroma == 0 then
Line 107: Line 103:
last_diatonic_note = i
last_diatonic_note = i
else
else
local num_flats = round((last_diatonic_note - i) / chroma)
local num_flats = math.floor((last_diatonic_note - i) / chroma)
local num_downs = (last_diatonic_note - i) % chroma
local num_downs = (last_diatonic_note - i) % chroma
if chroma == 0 then
if chroma == 0 then
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