What do I do with this?
download a copy
This is a device for
calculations involving quantities with known or estimated
The calculations may involve algebraic operations
Z = X + Y ; Z = X - Y ; Z = X x Y ; Z = X/Y ; Z = XY
or mathematical functions
Z = 1/X ; Z = ln(X) ; Z = log10(X) ;
Z = 10X ; Z = eX ; Z = sqrt(X) .
If uncertainties (dX, dY)
provided for the input quantities (X,Y), the program will perform the
or function to calculate the answer (Z) and will also calculate the
in the answer (dZ). The program will assume the value has no
if an uncertainty is not provided.
cursor on the blank under "X", click the mouse, and type a value.
Alternately, press the TAB key until the cursor appears in this blank,
then type the number. In case of an error, use normal
procedures. Enter values for X and dX, and possibly for Y and
(The TAB key moves the cursor through the blanks in the order: X, dX,
Click on the button for the desired operation or function. The equation for the calculation appears in the central blank, and the values of Z and dZ appear in their respective blanks.
There are buttons for transferring values from Z to a MEMory location, or to the blanks for X or Y; or from the MEMory to X or Y.