en.wikipedia.org/wiki/Muhammad_ibn_Musa_al-Khwarizmi

Muḥammad ibn Mūsā al-Khwārizmī (Persian: محمد بن موسی خوارزمی , Arabi...

lostislamichistory.com/al-khawarizmi/

Sep 6, 2012 ... Using the old Roman numeral system made advanced math next to ... But al-
Khawarizmi knows that any division by zero is impossible.

www.todayifoundout.com/index.php/2015/09/the-story-of-zero/

Sep 14, 2015 ... Neither did Pythagoras or Euclid or other ancient mathematicians. ... The system
intrigued al-Khwarizmi because it used nine different symbols ...

www.famousscientists.org/muhammad-ibn-musa-al-khwarizmi/

Early Life: Muhammad ibn Musa al-Khwarizmi was a Persian mathematician, ...
process that led to the use of the nine Arabic numerals, together with the zero
sign. ... While his major contributions were the result of original research, he also
did ...

ualr.edu/lasmoller/aljabr.html

Did you know . ... treatise by the ninth-century Arabic author al-Khwarizmi. A
translation of al-Khwarizmi's name itself gives us the word "algorithm." ... It may
well represent the first use of zero as a positional place holder. From that title, we
have ...

www-history.mcs.st-andrews.ac.uk/HistTopics/Zero.html

The second use of zero is as a number itself in the form we use it as 0. ... It just
did not happen that someone invented the ideas, and then everyone started to ....
It came at an early stage for al-Khwarizmi wrote Al'Khwarizmi on the Hindu Art of
...

www.livescience.com/27853-who-invented-zero.html

Jun 28, 2013 ... Zero was crucial to al-Khowarizmi, who used it to invent algebra in the ninth
century. Al-Khowarizmi also developed quick methods for ...

www.muslimheritage.com/article/contribution-al-khwarizmi-mathematics-and-geography

Muhammad ibn Musa Al-Khwarizmi is one of the greatest scientific minds of the ...
al-Hindî on arithmetic in which he used Indian numerals [7] including zero in .... [
22] argues that since Al-Khwârazmî wrote a brief work on geography, he did not ...

www.irfi.org/articles/articles_301_350/alkhwarizmi.htm

One can argue that one really does not "need" algebra unless one plans to teach
.... He was the popularizer of Arabic numerals, adopter of zero (the symbol, that is
) .... although again we should emphasise that al-Khwarizmi uses only words to ...

nrich.maths.org/5961

Brahmagupta used a special sign for negatives and stated the rules for dealing
with ... The product of zero multiplied by a debt or fortune is zero. ... The ancient
Greeks did not really address the problem of negative numbers, because their ...
In the 9th century in Baghdad Al - Khwarizmi (c.780 - c.850 CE) presented six ...