As for example in the fraction 1/2 the / symbol is the solidus line.
0 is a symbol for the absence of a number.
No because the 0 symbol originated from the Indian subcontinent but he may have improved on the usefulness of the zero symbol.
1992
If you mean the symbol &, it is called an ampersand.
It varies, but the most common is a bar over the symbol (called "null").
As for example in the fraction 1/2 the / symbol is the solidus line.
0 is a symbol for the absence of a number.
Octothorpe
Press and hold the number "0" until you see the choice of zero or a degree (°) symbol, and slide your finger over it.
The symbol over an "o" is called a diaeresis or umlaut. It is used to indicate that the vowel is pronounced separately from the preceding vowel, as in the word "coöperate" or "naïve."
That's the Universal Power Symbol.
The symbol for a long vowel sound is called a macron. It is a diacritical mark placed over a vowel to indicate that it is pronounced as a long vowel.
The squiggly symbol placed over the letter "s" in "José" is called an acute accent. It indicates that the letter "e" is pronounced with emphasis in Spanish.
a symbol
The symbol for long a is "ā" with a macron over the "a." The symbol for short a is "ă" with a breve over the "a."
They are called food webs Hope that was helpfull:):):0