Trigonometric functions

All trigonometric functions use radians when an angle is called for. The ratio of degrees to radians is 180 n. sin x , y cos x , y tan x , y The standard trignometric functions. y sin x , y cos x , and y tan x . arcsin x , y arccos x , y arctan x , y The inverse trigonometric functions y sin-1 x , y cos-1 x , y tan-1 x . These return the value of y in radians such that sin y x with y G f cos y x with y 0,7r and tan y x with y f, f , respectively. Returns tan-1 f but takes into account the sign...

Shape functions

Force a sequence of arrays including array scalars to each be at least 1-d. Force a sequence of arrays including array scalars to each be at least 2-d. Dimensions of length 1 are pre-pended to reach a two-dimensional array. Force a sequence of arrays including array .scalars to each be at least 3-d. Dimensions of length 1 are pre-pended to reach a two-dimensional array. Return a new array with the contents of arr shifted rolled by the amount given in the integer argument shift along the axis...