The absolute value of a means the distance from the point 0 point instead of a real number a is called the absolute value of the number of powerful, actually writing a symbol representing a | |.
The absolute value of a represents the distance from the point 0 to the point where the real number a. called the absolute value of a real number a symbol, denoted by | a |.
The absolute value of the A means the distance from point to point 0 instead of real numbers a called absolute ของจำนวนจริง a represented by a symbol. | a | .