Calculator with handwriting pad

A calculator with a handwriting pad, the calculator being configured for performing a mathematical operation, the calculator comprising a main body and a handwriting pen for being operated by a user, wherein the handwriting pen is detachably arranged on the main body;

• the main body is provided with a control module, a button module group for being operated by the user, a display electrically connected to the control module, a liquid crystal display (LCD) screen, and a clear switch;
• the display and the liquid crystal display screen are both arranged on an identical surface of the main body, the display being spaced apart from the liquid crystal display screen;
• the control module performs the mathematical operation when the user operates the button module group and displays an operation result through the display;
• the LCD screen is configured to adapt to the handwriting pen for writing use;
• the clear switch is configured to be operated by the user and generate a clear signal;
• the control module is configured to receive the clear signal and clear, according to the clear signal, content displayed on the LCD screen;
• and the display is configured for displaying an operation result of the mathematical operation;
• wherein a battery is further arranged in the main body;
• and the control module is electrically connected to the battery;
• wherein a receiving slot is provided in the main body;
• the battery is arranged in the receiving slot;
• and the battery is electrically connected to the control module through a conductive sheet;
• wherein a pulling element is detachably arranged on the main body;
• the receiving slot is located on the pulling element;
• the pulling element is provided with an elastic element on one side of the receiving slot;
• a fixing block is arranged on the first elastic element:
• a first fixing slot is provided in a position, corresponding to the first fixing block, on the main body;
• the first fixing block is arranged in the first fixing slot when the pulling element is mounted on the main body;
• and the pulling element is fixed on the main body through a screw on the other side of the receiving slot.