function avercosBy( N, x, strideX, y, strideY, clbk, thisArg ) {
	return mapBy( N, x, strideX, y, strideY, avercos, clbk, thisArg );
}
Computes the inverse versed cosine of each element retrieved from an input strided array `x` via a callback function and assigns each result to an element in an output strided array `y`.

@param {NonNegativeInteger} N - number of indexed elements
@param {Collection} x - input array/collection
@param {integer} strideX - `x` stride length
@param {Collection} y - destination array/collection
@param {integer} strideY - `y` stride length
@param {Callback} clbk - callback
@param {*} [thisArg] - callback execution context
@returns {Collection} `y`

@example
function accessor( v ) {
    return v;
}

var x = [ 0.0, -1.57, -0.5, -1.0, -1.25 ];
var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];

avercosBy( x.length, x, 1, y, 1, accessor );

console.log( y );
// => [ 0.0, ~2.177, ~1.047, ~1.571, ~1.823 ]