This gives the meaning of the terms as generally understood in the middle of the 18th century. Robert Hooper's Physician's Vade-Mecum, published in 1812 has been used as a source of terms in the early 19th century; many of the terms mentioned are still in common use.
In either case, the value at x = 0 is defined to be the limiting value sinc(0) = 1. The normalization causes the definite integral of the function over the real numbers to equal 1 (whereas the same integral of the unnormalized sinc function has a value of Ï).
float sin(float angle) vec2 sin(vec2 angle) vec3 sin(vec3 angle) vec4 sin(vec4 angle) The sin function returns the sine of an angle in radians. The input parameter can be a floating scalar or a float vector. In case of a float vector the sine is calculated separately for every component.