# COPYING AND ADDING TO HINDU MATHEMATICS

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Muslims did not invent the digit zero or the decimal point.

Arabic numerals were copied from the Hindus.

Hindu and Jain mathematicians wrote about step by step processes (algorithms) for solving quadratic equations.

Muslim Persian mathematician al-Khwārizmī copied from Shridhara to produce ”Book on Calculation by Completion and Balancing”.

The only symbols used in Hindu mathematics were abbreviations of the names of colors as the 4 operation signs. In the 3rd century, Diophantus of Alexandria wrote the book “Arithmetica” which used letters of the alphabet to represent unknowns and used a symbol to represent the equal sign. Muslims added the symbols of Diophantus to Hindu mathematics, plus added symbols for squared and square root.

‘Abd al-Hamīd ibn Turk (in around the year 830) wrote an algebra book nearly identical to a book written by al-Khwarizmi but adding additional categories of quadratic equations.

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