| Basic math calculators
• Mathematically impossible operations (such as attempting to take the square root of a negative number) will generate a warning notice (this calculator only deals with real numbers).
|For addition, subtraction, multiplication, and division the calculator works
in a simple RPN mode. Enter the first number in the X-value edit field,
hit 'return' and enter the second number, and then hit the '+', '-', '*',
or '/ ' key. Note that for performing subtraction in RPN, the ‘_’ (underline) key is substituted for the '-' (minus) key. The result appears in the X-value field.|
Also note that when computing sines, cosines, or tangents, the calculator expects angles in degrees (not radians).