HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 75
Simple operations with algebraic objects
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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*~rQ2™K~a1` resulting in: The keystrokes corresponding to RPN mode are: „ì~r`2Q*~a1K After storing the variable A2 and pressing the key, the screen will show the variables as follows: In ALG mode, the following keystrokes will show a number of operations with the algebraics contained in variables @@A1@@ and @@A2@@ (press J to recover variable menu): @@A1@@ + @@A2@@ ` @@A1@@ - @@A2@@ ` Page 5-2