CALCULATOR PARTS

2.2. Keyboard

Enter the number, chemical formulae, functions and operator just as you speak them.

To use your numeric keypad to enter numbers and operators, press NUM LOCK.

You enter a positive number by pressing the appropriate digit keys and, if necessary, the decimal point key ..

Inverse functions can be inserted by clicking the left mouse button on the a... button then on the button associated with function.

Negative numbers are obtained by simply putting the minus character ( - ) before the number.

Enter the mantissa as the positive or negative number, and then click E button or just type E or e and type exponent as the positive or negative number.

Every function that is supported by Calculator for Chemists can be inserted by clicking on the button with the functions name or by typing its name on the physical keyboard. Some functions are not associated with the buttons, but every function can be called by typing its name.

If the first character in the expression is # that line is a command. With such expressions it is possible to change the number format or the angle measurement. For scientific mode with 3 decimal places enter #sci3 in input line.

To work with numbers stored in memory:

• Click MS to store a number. When you store a number in the memory, a MEM appears in the Status line on the display.
• The number stored in the memory can be seen as a ToolTip text if the mouse pointer is held over the MEM sign.
• To recall a stored number, click MR. If you store another number in the memory, it replaces the number currently in memory.
• To clear the memory, click a... + C.
• To add the displayed number to the number already in memory, click M+.
• To subtract the displayed number to the number in memory, click a... + M+

You must not enclose arguments in parentheses, except if arguments contain math operators.

Select the component you entered and then click the (...) button. Calculator for Chemists encloses the selected text in brackets or, if there is no selected text, encloses the whole expression in the input line.