Talk:Math

Here are some examples of how I think it could be useful to have mathematical relations between objects with certain attributes. For example gravitation could be a relationship, any article about an object with attribute mass could have a relation with all articles about objects with mass. A few constraints could be made, such as the object must have a mass over a certain limit and be within a certain distance from another object. An example search could be, find objects within 0.4AU from the sun with a mass higher than 10^20kg, this would return the planet mercury and the gravitational force between the sun and mercury, the first time someone searches for this the value would be calculated and cached and not unless some number like the sun's mass is changed in the database. Maybe it could even output equations and input number that would be heavy to calculate, perhaps in a format recognized by matlab etc., so that a user may use an external client side program for calculations. In the example above with mercury it could output both Newton's universal law of gravity and General relativity equations so the user may choose how to calculate depending on required accuracy. This would especially be useful if for each number(mass etc.) and equation wikipedia would output it would also include a link to a source so the data could be easily and quickly be checked for accuracy. Fuelbottle 00:43, 17 November 2005 (CET)

I think that for effective search you don't need a real functional parsing of all units and derivates. But it should be able to unterstand that:

1 PS = 735.5 W = 735.5 J s^-1 = 735.5 J/s = 735.5 N m s^-1 = 735,5 V A = 735.5 kg m² s^-3

A mathematical Search should take all units and transform them to the basic SI-Units (1, m, kg, s, A, K, mol, cd). In the Database only this units should get stored - and no other ones. Otherwise the values would'nt be compareable. We need also the possibility to store complex numbers (two floats) and exponents of the units (at least integers). A Table storing units could therefore looks like:

This approach can't solve all possible statements, but it will do very well for the most ones and should be relativly simple to implement. MovGP0 01:50, 17 November 2005 (CET)

Note: We need also something similar for other kind of special datatypes like electron-configuration of atoms:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

MovGP0 15:10, 17 November 2005 (CET)

Here are some mathematical and other ontology stuff: Library of Ontologies, maybe it could be useful for some ideas. It also defines for example chemical element and things like relations to the various element's crystal structures(if any). Fuelbottle 16:31, 17 November 2005 (CET)