HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 229
Flags Used, Remarks, Program Instructions
UPC - 082916001456
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Program Lines: (In ALG mode) Description $ ¸8º´θ8T Calculates the magnitude of the U, V, W vector. ! 1 Divides the dot product by the magnitude of the X-, Y-, Z-vector. ª Divides previous result by the magnitude. 2 Calculates angle. ! Displays angle. ! Loops back for polar display/input. Checksum and length: 0548 90 Flags Used: None. Remarks: The terms "polar" and "rectangular," which refer to two-dimensional systems, are used instead of the proper three-dimensional terms of "spherical" and "Cartesian." This stretch of terminology allows the labels to be associated with their function without confusing conflicts. For instance, if LBL C had been associated with Cartesian coordinate input, it would not have been available for cross product. Program Instructions: 1. Key in the program routines; press when done. 2. If your vector is in rectangular form, press X R and go to step 4. If your vector is in polar form, press X P and continue with step 3. Mathematics Programs 15-7