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(25) Time (+⁄-)
11-13-2020, 12:39 PM
Post: #1
(25) Time (+⁄-)
An extract from Calculator Program For Time Addition And Subtraction On Videotape Editors, Broadcast Management Engineering (v13 n4), APR 1977, pgs. 67-68

"     Problem: To set up a program on the Hewlett-Packard HP-25 calculator to display time duration, sums and differences from SMPTE time code data.
     Solution: … This program, used with a Hewlett-Packard HP-25 calculator, accepts two hour, minute, second, frame values and calculates their sum or difference. SMPTE drop frame timecode or "clock" times are accepted directly; changing a constant allows the calculation of actual durations from non-drop frame timecode data.
     To set up the calculator, enter the program as listed … "

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