Sinhalese had special symbols to represent numerals, which were in use until the beginning of the [19th] century.
There are 40 in a set; 26 for the letters in the alphabet, 10 for numerals, three which are called "substitutes" and are really just ditto marks, and one "answering pennant".
Similarly, number systems have posed a problem for theorists because such symbols as the Arabic numerals 1, 2, 3, etc., which are conventional across many languages, appear to express thought directly without any intermediary linguistic structure.
The principal example of this kind of notation is the Chinese numeral system, three variants of which are shown in the figure.
The numeral 1, which is red and green, represents birth; 2, blue and green, infancy; 3, orange and blue, youth; 4, red and yellow, adolescence.
The earliest number detected was thus the temporal marker of the voluntary shift of attention from the letter stream to the numeral stream, which was estimated in the range of 300 to 400 ms. More direct measures of the dynamics of attentional deployment estimate that voluntary shifts take place 150 to 200 ms from the instruction [5], [6].
Again, you can plug π into your calculator to get its numeral value, which is a closer approximation of 3.14.
The unit cell contains two atoms which are marked by numerals "0" (basic atom) and "1" (an extra atom).
Depending on definition there are in humans twelve or thirteen cranial nerves pairs, which are assigned Roman numerals I XII, and zero assigned to cranial nerve zero, (or the terminal nerve).
Instead, the reader is glibly informed at the end: "The superscript numerals appearing in the text indicate citational notes, which are available online at www.sciencefictions.net".net
