# Function rightArithShift Bitwise right arithmetic shift of a value x by y number of bits, `x >> y`. For matrices, the function is evaluated element wise. For units, the function is evaluated on the best prefix base. ## Syntax ```js math.rightArithShift(x, y) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `x` | number | BigNumber | Array | Matrix | Value to be shifted `y` | number | BigNumber | Amount of shifts ### Returns Type | Description ---- | ----------- number | BigNumber | Array | Matrix | `x` sign-filled shifted right `y` times ## Examples ```js math.rightArithShift(4, 2) // returns number 1 math.rightArithShift([16, -32, 64], 4) // returns Array [1, -2, 3] ``` ## See also [bitAnd](bitAnd.md), [bitNot](bitNot.md), [bitOr](bitOr.md), [bitXor](bitXor.md), [rightArithShift](rightArithShift.md), [rightLogShift](rightLogShift.md)