The ProWesS calculator allows you to do some simple calculations. You can type the numbers or indicate them, and add, multiply, subtract or divide them. The calculations occur in while typing (so precedence rules are not considered).
The current subtotal is displayed in the display window. The fontsize and colour of the display window can be configured.
The result can be obtained by pressing <=>, or (if the pointer is not inside an item) by pressing <enter>.
The display can be cleared by indicating the "Clear" item, or by pressing <esc>. However, if you press <esc> when the display is already cleared, the program will be terminated.
It is possible (especially in binary representation) that not all digits of a number can be displayed in the window, in that case you should resize the window to make everything visible.
The ProWesS calculator is also capable of doing base conversions. The base which is in use is always indicated.
When the base is changed, the value in the display window is converted, and all items for the digits which can not be used are made unavailable.
Changing base is possible by indicating the item or pressing <x> for hexadecimal representation, <t> (cfr. ten) for decimal representation or <i> for binary representation.
The ProWesS calculator is very configurable. It contains a configuration block which allows configuring with any level 2 config program (sorry, there is no such program which is part of ProWesS just yet, it is possible using the MenuConfig program which is distributed by Jochen Merz).
The following aspect are configurable :