tag:blogger.com,1999:blog-4496140522786544836.post1092948086570831335..comments2024-01-03T03:07:55.637-08:00Comments on <a href="http://nottinghamscience.blogspot.com/">Nottingham Science Blog</a>: Post about Al Khwarizmi by No3 SonUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4496140522786544836.post-18791393181632480362015-12-10T13:25:50.732-08:002015-12-10T13:25:50.732-08:00Negative numbers had been known about for a long t...Negative numbers had been known about for a long time, but were only just becoming recognised in Arabia : <br />https://en.wikipedia.org/wiki/Negative_number#HistoryNSBnoreply@blogger.comtag:blogger.com,1999:blog-4496140522786544836.post-21663590272142726472015-12-07T14:19:43.372-08:002015-12-07T14:19:43.372-08:00Were negative numbers understood at the time Ash? ...Were negative numbers understood at the time Ash? Could he have realised that there were two solutions? JonAnonymoushttps://www.blogger.com/profile/12737899521381708211noreply@blogger.com