Thanks for this. What should /Template:Molar mass calculator/ look like?
Currently I have:
{{#invoke:Molar mass calculator|calc}}
but this returns a null value when variables are provided.
On 1/04/2015 12:44 PM, Ori Livneh wrote:
On Tue, Mar 31, 2015 at 3:25 PM, Brenton Horne <[email protected]>
wrote:
Thanks, I have also posted this question on Stackoverflow (
http://stackoverflow.com/questions/29377097/lua-module-
for-calculating-the-molar-mass-of-chemical-compounds) someone with Lua
skills but not so much with MediaWiki Lua templating and they gave this
code:
|local AtomicWeightLookup= {
C= 12.01,
H= 1.001,
O= 16
}
local function Calculate(Input)
-- Input Example: {C = 2, H = 6, O = 1}
local Result= 0
-- Iterate through Input table
for Element,Quantityin next,Inputdo
-- If element is not found in table, assume 0 weight.
local AtomicWeight= AtomicWeightLookup[Element] or 0
-- Multiply
Result= Result+ Quantity* AtomicWeight
end
return Result
end
-- EXAMPLE
print(Calculate({C= 2, H= 6, O= 1}))|
but as you can see there's no variables in here that are set by MediaWiki
templates, but it seems like a decent starting place.
Here you go:
https://test2.wikipedia.org/wiki/Module:Standard_atomic_weight
https://test2.wikipedia.org/wiki/Module:Molar_mass_calculator
demo: https://test2.wikipedia.org/wiki/Module_talk:Molar_mass_calculator
Note that your table had an error -- the atomic weight of Fluorine is
assigned to symbol 'C' rather than 'F'.
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