A.The old mathematic conceptual which is still being used until now is:
1.trigonometry.
for example:1.formula sin(a+b)=sin a.cos b+sin b.cos a
2.theorem of L'Hospital.It found by De L'Hospital.
3.prime number.
it still used now.It found by Erasthothenes.He uses his sieve algorithm to isolate prime number.
4.Calculus.
It found by Issac Newton and Gottfried Leibniz.
5.Logic of mathematisc.It found by Aristoteles.
6.Theory of probability.
It found by Blaise Pascal and Pirrre de Fermat.
7.Irrasional number.It found Phythagoras 530 BC.
8.Abacus.
It is one of the earliest tools of mathematics.first,it form surface sand,sabak candle or stone with a width that shows the number and location of gravel is used as the counter.it now still used in East Asia and Middle East.

B.the old mathematics conceptual which is not used now is:
1,Value of phi is 3,16.It writed in Papyrus Rhind.And now value of phi is 3,14.
2,The Roman Sabak.
Sabak used with the gravel that located above and bellow the separator line marked with numbers according to the column-roman colomns.
3,Most old calculator.
It has long 1,5 m.
4.volume of limas.

C.The old mathematics conceptual which don't have relation with mathematics now is:
1.solving matter of mathematics with used closed problems,open ended problems,and open problem.

source:
1.atrasku.wordpress.com/2008/08/14/bagamaimanakah-matematikaku-zaman-kuno/ - 13k - Cached - similiar pages-