The detrusor urinae muscle, also detrusor muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder.
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.
That is the Frequency) That means that Frequency = 1 / Time If we want to graph a wave with a frequency of 60Hz (Hz being hertz which simply means cycles per second) then we would use the formula: sin(2Ï*60hz*t) or simplified as (sin(Ït) where Ï = 2 * pi * frequency. Ï is known as the angular frequency.