Some examples:
a for area,
b for breadth,
c for circle or curve,
d for diameter or depth or dimension,
f for foci,
l for length or line,
m for modulus (= slope),
r for radius,
v for volume,
w for width,
x for horizontal coordinate,
y for vertical coordinate,
z for third orthogonal coordinate in 3-d geometry.
and finally, pi for the ratio of the circumference of a circle to its diameter.
Algebra geometry
The symbol for representing the period of a wave is the greek letter lambda (λ).
X and y
"why" is not a mathematical symbol.
The ancient Greeks did the original work of inventing geometry as we know it, and pi is a letter in the Greek alphabet, so it was a convenient symbol for them to use.
it means the common symbols and expression used in mathematics,geometry and statistics.
Algebra geometry
The symbol for representing the period of a wave is the greek letter lambda (λ).
X and y
"why" is not a mathematical symbol.
Pi was first used as a mathematical symbol by the mathematician William Jones in 1706.
The ancient Greeks did the original work of inventing geometry as we know it, and pi is a letter in the Greek alphabet, so it was a convenient symbol for them to use.
The symbol for pi is the 16th letter of the Greek alphabet. Many Greek letters are used in mathematics for various functions.
Coordinated geometry is used to plot locations in a manner that permits assessing distances and areas with mathematical accuracy..
The symbol is f, for frequency.
T
The German mathematician Gottfried Wilhelm Leibniz used the symbol ~ for similarity, as used in geometry.