noun
: the graph in rectangular coordinates of the equation y . a sin bx where a and b are constants that when a . 1 and b . 1 passes through the origin and all points on the x-axis where the abscissas are multiples of π radians, is concave towards the x-axis, and has maximum and minimum ordinate values of +1 and -1
[s]sinecurv.jpg[/s] [
sine curve: graph of y = a sin bx where a =1, b =1
]