HP 48gII ³„ì*~rQ`~a1K, ³„ì*~rQ™K~a1`, Simple operations with algebraic objects

After building the object, press to show it in the stack (ALG and RPN modes shown below):

Simple operations with algebraic objects

Algebraic objects can be added, subtracted, multiplied, divided (except by zero), raised to a power, used as arguments for a variety of standard functions (exponential, logarithmic, trigonometry, hyperbolic, etc.), as you would any real or complex number. To demonstrate basic operations with algebraic objects, let’s create a couple of objects, say ‘π*R^2’ and ‘g*t^2/4’, and store them in variables A1 and A2 (See Chapter 2 to learn how to create variables and store values in them). Here are the keystrokes for storing variables A1 in ALG mode:

³„ì*~rQ™K~a1`

resulting in:

The keystrokes corresponding to RPN mode are:

³„ì*~rQ`~a1K

After storing the variable A2 and pressing the key, the screen will show the variables as follows:

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