discover science
The story of numbers
MUHAMMAD ibn Musa al-Khwarizmi (780-850 AD,花剌子密) was an Islamic thinker. He helped shape the modern scientific world.
There are a few ways of writing numbers. The most common way, though – 1, 2, 3 and so on – first came from India.
- 对本期电子报订户、有效期内的VIP教师会员和本学期初二尊享卡用户,我们开放所有内容:
- 如果您拥有以上权限,请点这里登录;
- 订阅电子报,请点这里;
- 激活VIP教师卡,请点这里;
- 激活21英语尊享卡,请点这里。