some of these may include keys not found on a standard numpad, such as a spacebar or a (or ) key.

Sometimes it is necessary to distinguish between a key on the numpad and an equivalent key elsewhere on the keyboard. For example, depending on the software in use, pressing the numpad's key may produce different results than pressing the alphanumeric key. In such cases, the numpad-specific key may be indicated as e.g. , , , or