To enter this expression in the calculator we will first use the equation writer,
Please identify the following keys in the keyboard, besides the
numeric keypad keys:
The equation writer is a display mode in which you can build mathematical
expressions using explicit mathematical notation including fractions, derivatives,
integrals, roots, etc.
shown above, use the following keystrokes:
After pressing `the calculator displays the expression:
Pressing `again will provide the following value. Accept Approx. mode on,
if asked, by pressing !!@@OK#@. [Note: The integer values used above, e.g., 3, 5,
1, represent exact values. The EXP(2.5), however, cannot be expressed as an
exact value, therefore, a switch to Approx mode is required]:
You could also type the expression directly into the display without using the
equation writer, as follows:
to obtain the same result.
To use the equation writer for writing the expression