HP 35s HP 35s scientific calculator - User Guide - Page 85
Polar to Rectangular Conversion., To convert between rectangular and polar coordinates
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To convert between rectangular and polar coordinates: The format for representing complex numbers is a mode setting. You may enter a complex number in any format; upon entry, the complex number is converted to the format determined by the mode setting. Here are the steps required to set a complex number format: 1. Press 8 and then choose either or in RPN mode (in ALG mode, you may also choose 2. Input your desired coordinate value (x 6 y, x y 6 or r ?a) 3. press Example: Polar to Rectangular Conversion. In the following right triangles, find sides x and y in the triangle on the left, and hypotenuse r and angle θ in the triangle on the right. 10 30o x y r 4 θ 3 Keys: 9 8 Display Description: Sets Degrees and complex coordinate mode. Convert rθa (polar) to xiy (rectangular). Real-Number Functions 4-11