Sunday, November 30, 2008

Understanding Al-Khawarizmi (780-846 M) -a mathematician Muslim

This figure named Abu Ja'far Muhammad ibn Musa Al-Khawarizmi (780-846 M) is a Muslim intellectual who donated his work in many areas of mathematics, geography, music and history. He is rendered in the development of mathematics, in the name left to "algorithm".He was born in Khawarizmi, Uzbeikistan, in the year 194 H/780 M.Reckoning al-Jabr wa al-Muqabla (Pengutuhan Kembali dan Perbandingan) and Al-kare 'at-Tafriq of reckoning bi-al-Hind (Adding and Reducing the Hindu Mathematics) are two of the works of Al-Khawarizmi in the field of mathematics is very important. Both works are many decompose on Linear and quadratic equation; calculation of the integration and equality with 800 examples of the different;negative signs that have not previously been recognized by the Arab nation.In Al-Jama’ wa at-Tafriq, Al-Khawarizmi describe the specifics uses of the numbers, including zero in daily life. It also works translated tin. Al-Khawarizmi also believed to zero as the inventor.Donations Al-Khawarizmi in goniometry also extraordinary. Table corners geometry-related functions sine and tangent tangen experts have been helping Europe understand more about the science of this. in addition to mathematics, Al-Khawarizmi, also known as astronom. Under the Caliph Ma'mun, a team astronom the dipimpinnya successfully determine the size and form of a circle the earth. Research was conducted in Sanjar, and Palmyra. The result is the difference between 2,877 feet from the size of the middle line of the earth. An extraordinary calculation can be done at the time. Al-Khawarizmi also preparing books about the timing shadow on the sun.Al-Khawarizmi also a geography expert. Book, letter, al-Ardl (Rupa Bentuk Bumi), a basic geography Arabic. The paper is still stored in Strassberg, Germany.In addition to experts in the field of mathematics, astronomy and geography, Al-Khawarizmi also an expert art music. In one of mathematics books, Al-Khawarizmi write the theory of art music. The influence of this book to Europe and is considered as the introduction to Arabic music to the Latin world. By leaving the works of magnitude as the largest and leading scientists in the period, Al-Khawarizmi died in the year 262 H/846 M in Bagdad.

study of literature:http://www.beritanet.com/Education/Al-Khawarizmi

Friday, November 28, 2008

The results of the paper Henry Briggs

Henry Briggs is French English who live in the years 1562 and died in the year 1630. He is a change Napier's logarithms to the public / Briggesian logarithm.During his life, he produced several works, among others:

1.Logarithmorum Chilias Prima

Logarithmorum Chilias Prima book is the result Henry Briggs works in 1617. This book describes a brief account of logarithm tables and long first round in 1000 calculated to 14 decimal places. This book is to change Napier's logarithms to the Briggesian logarithm with the results of the discussions conducted by Henry Briggs and John Napier in 1616.


2.Trigonometria Britannica

Trigonometria Britannica is a book that contains a table of logarithms Sines and tangents hundred for each part of the degree to fourteen decimal places, with a table of natural Sines to fifteen places, and tangents and secants for the same to ten places; book is printed in Gouda in 1631 and published in 1633.

study of literature:http://en.wikipedia.com/henry_briggs

Thursday, November 27, 2008

introduction

I will introduce myself, my name is Anif Ardhiansyah. I come from Purbalingga,I graduated from high school N 1 Purbalingga. Now,I lecture at UNY. I created this blog in order to fulfill the tasks of the course the history of mathematics. This blog will contain about my knowledge of mathematics. Hopefully this blig useful for the readers. Let fight for the progress of education in Indonesia.