In Time mode, buttons are available to control a simple stopwatch.
To start the stopwatch use the start button, which results in increasing time being displayed. This continues until one of the other stopwatch buttons is pressed. The calculator cannot be used for other calculations unless the stopwatch is stopped or set to lap count.
To stop the watch, use the stop button. Pressing start again will cause the watch to resume timing from the time it was stopped. Pressing the lap button while it is running freezes the display without stopping the watch. When the start button is pressed again, the display shows the accumulated time without interruption. Once lap has been pressed the calculator can be used for other calculations.
If reset is pressed, the stopwatch is set back to zero. The next time start is pressed the watch will commence at zero.
Pressing count starts a countdown from the currently displayed time. This can be the result of a previous stopwatch time, or the start time can be entered as normal. When the countdown reaches zero the stopwatch beeps if "Error Beep" is enabled (see Modes).
The now button sets the display to the current (local) time.
In Binary, Octal, Hexadecimal or Base-N modes, you can use the ascii button to bring up a table of ASCII values. The values correspond to the number base being used. Selecting a value followed by OK will result in the display being updated.
The example above shows the decimal values for some of the ASCII codes. These were obtained by selecting Base-N mode with a base of 10, as explained in the Modes section.
The Data tab of them Options dialog is used to save and restore calculator data.
Data values, including the contents of memory and arrays or matrices, can be saved to or loaded from file using the Save and Load buttons. They result in a further dialog box to select the filename.
Physical properties, constants and conversions can also be saved or loaded. In addition, this information can be loaded via. the Internet if the URL is supplied, and this process can be made to occur automatically at specified intervals.