starlit  Diff

Differences From Artifact [3e36361725]:

• File mods/vtlib/math.lua — part of check-in [2e501ef0db] at 2024-05-15 20:37:58 on branch trunk — add chem radiator, add dummy radiator props to underfloor heater, complete (?) unfinished radiator API, fix longstanding LED offset buggery & crash, fix asset filename issue for LEDs, fix broken vector func (user: lexi, size: 4562) [annotate] [blame] [check-ins using]

To Artifact [65dcc21fc6]:

• File mods/vtlib/math.lua — part of check-in [caec179da9] at 2025-01-19 19:05:09 on branch trunk — add to lore, add weather data, etc (user: lexi, size: 4593) [annotate] [blame] [check-ins using]

    20     20   	end
    21     21   	local dsq = (d.x ^ 2) + (d.y ^ 2) + (d.z ^ 2)
    22     22   	return dsq / (dist^2)
    23     23   	-- [0,1) == less then
    24     24   	-- 1 == equal
    25     25   	-- >1 == greater than
    26     26   end
           27  +
           28  +local unpack = table.unpack or unpack
    27     29   
    28     30   -- produce an SI expression for a quantity
    29     31   fn.si = function(unit, val, full, uncommonScales, prec)
    30     32   	if val == 0 then return '0 ' .. unit end
    31     33   	local scales = {
    32     34   		{30, 'Q', 'quetta',true,  'q', 'quecto',true};
    33     35   		{27, 'R', 'ronna', true,  'r', 'ronto', true};
................................................................................
    51     53   			end
    52     54   		end
    53     55   		return unit
    54     56   	end
    55     57   
    56     58   	for i, s in ipairs(scales) do
    57     59   		local amt, smaj, pmaj, cmaj,
    58         -		           smin, pmin, cmin = lib.tbl.unpack(s)
           60  +		           smin, pmin, cmin = unpack(s)
    59     61   
    60     62   
    61     63   		if math.abs(val) > 1 then
    62     64   			if uncommonScales or cmaj then
    63     65   				local denom = 10^amt
    64     66   				local vd = val/denom
    65     67   				if prec then vd = lib.math.trim(vd, prec) end