HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 67
Entering complex numbers, is entered as accept mode changes
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Press @@OK@@ , twice, to return to the stack. Entering complex numbers Complex numbers in the calculator can be entered in either of the two Cartesian representations, namely, x+iy, or (x,y). The results in the calculator will be shown in the ordered-pair format, i.e., (x,y). For example, with the calculator in ALG mode, the complex number (3.5, -1.2), is entered as: „Ü3.5,í\1.2` A complex number can also be entered in the form x+iy. For example, in ALG mode, 3.5-1.2i is entered as (accept mode changes): 3.5 -1.2*„¥` NOTE: to enter the unit imaginary number alone type „¥, the I key. In RPN mode, these numbers could be entered using the following keystrokes: „Ü3.5,í1.2\` (Notice that the change-sign keystroke is entered after the number 1.2 has been entered, in the opposite order as the ALG mode exercise). Page 4-2