Module:Powharmonic series: Difference between revisions
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local n = tonumber(frame.args["n"]) | local n = tonumber(frame.args["n"]) | ||
local expo = tonumber(frame.args["expo"]) | local expo = tonumber(frame.args["expo"]) | ||
local out_str = | local out_str = "{| class=\"wikitable center-all\"\n" | ||
.. "|+ style=\"font-size: 105%;\" | Intervals of the " .. expo .. "-Powharmonic series\n" | |||
.. "! rowspan=\"2\" | Pitch !! colspan=\"2\" | Frequency multiplier !! colspan=\"3\" | Pitch\n" | |||
.. "|-\n" | |||
.. "! Definition !! Decimal !! [[Cent]]s !! Change (cents) !! Octave-reduced (cents)" | |||
.. "\n" | |||
local fmt_cent = string.format("%%.%df", tonumber(frame.args["prec"])) | local fmt_cent = string.format("%%.%df", tonumber(frame.args["prec"])) | ||
local p_prev = 0 | local p_prev = 0 | ||
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for i = 1, n do | for i = 1, n do | ||
p_current = 1200 * math.log(i) / math.log(2) * expo | p_current = 1200 * math.log(i) / math.log(2) * expo | ||
out_str = out_str .. | out_str = out_str | ||
.. "|-\n" | |||
.. "| ".. i | |||
.. " || " .. i .. "<sup>" .. expo .. "</sup>" | |||
.. " || " .. string.format(fmt_cent, i^expo) | |||
.. " || " .. string.format(fmt_cent, p_current) | |||
.. " || " .. string.format(fmt_cent, p_current - p_prev) | |||
.. " || " .. string.format(fmt_cent, math.fmod(p_current, 1200)) | |||
.. "\n" | |||
p_prev = p_current | p_prev = p_current | ||
end | end | ||