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The symbol is f, for frequency.
The symbol for representing the period of a wave is the greek letter lambda (λ).
What mathematical symbol? Different symbols were invented in different times and places.
"why" is not a mathematical symbol.
There are many: pi (or π); f or h for frequency (h is for Hertz, the unit for freq); l for the wavelength (lambda = l for length); t for time.
T, seconds
T
The mathematical statement of equality is represented by the symbol "=" and is used to show that two expressions are equivalent or have the same value. It signifies that the quantity on the left side of the symbol is exactly the same as the quantity on the right side.
T
The symbol is f, for frequency.
The symbol for representing the period of a wave is the greek letter lambda (λ).
The mathematical symbol for period is a Capital T with short legs on either side of the horizontal line. This symbol is most often used when finding frequency through 1/period or using frequency to find the period of a wave in the equation Period =1/ frequency T
The quantity symbol for reactance is X.
There is no particular symbol for "no change". However, if you know the quantity that has not changed, for example represented by H, you could write "ΔH = 0". Δ is the accepted symbol for "change in/of .." so if the change equals zero then there is no change.
The less than sign < is a mathematical symbol used to indicate that one quantity is smaller than another. It is commonly used in mathematical inequalities and can be read as "is less than."
The symbol for the base quantity of time is "t".
I think its this symbol