history of mathematic

Mathematic concept, mathematic problems, or solve mathematic in past epoch that still to use/ not to use in present epoch or opposite its.

1. I found mathematic concept, mathematic problems or solution of mathematic in past epoch and now is ready to use, such as :

a. Zero number of concept, that founded in past epoch in India, by Aryabhata. And use to Cacah Number of system.

b. Pythagoras theorems ( elbow ) have side 3-4-5 as sacred triangle.

c. Square wide ; K = ( a+c)(b+d)/4 with side rapidly a, b, c, and d.

Volume from pyramid that found by Egypt peoples in mathematic Moscow papyrus. That is : V_limas = {h(a²+ab+b² )}/ 3. a is base side, and line that connection base with top pyramid is b and high line is h . And if b=0, then limas of formula is V_limas = (h.a²)/3.

d. Limit function that famous with rule” L’ Hospital ”.

e. Algebra system in Mesopotamia, the shape of hyperbola according to archimedes, the elliptical in algebra equation.

2. I found mathematic concept, problems or solution of mathematic in past epoch and now is not to use, such as :

a. Circle wide = ( 8/9 x 2r ) ²

= 64/81 x r²

= 256/81 x r²

= 3,16 r²

So, at the time, Egypt people found that p = 3,16.

b. In Rhind Papyrus is about algebra and geometry. Then times with use two columns.

3. I found mathematic concept , mathematic problems or solution of mathematic in present that haven’t relation with mathematic in past epoch, such as :

a. Topologi is geometry branch and found in 20 century by Prances mathematician ( Jules Henry ). Topologi is mathematic about continuities.

b. Solve mathematic with use close problems, open-ended problems, open problems.