variable
X and y
He used "aleph", the first letter of the Hebrew alphabet, which looks like this: א
variable
+ is the symbol for adding two numbers together.It is usually called the plus symbol.
Variable: A letter or symbol used to represent a number or quantities that vary
A symbol, usually a letter, that is used to represent 1 or more numbers
A variablẹ
It is a variable
It is a variable
X and y
He used "aleph", the first letter of the Hebrew alphabet, which looks like this: א
If you are talking about math then its usually " x " but if that is already use in the expression and you want to use another symbol to represent a DIFFERENT number then you can use y or a or so on.
variable
The symbol that is used to represent a joule is the letter "J". This is a derived unit of energy. It can also be used to represent work, and an amount of heat.
b
A variable! like x!
+ is the symbol for adding two numbers together.It is usually called the plus symbol.