Can you answer this question correctly?

This is a discussion on Can you answer this question correctly? within the A Brief History of Cprogramming.com forums, part of the Community Boards category; The time is 3:15 What is the angle between the hour hand and the minute hand?...

  1. #1
    Banned ಠ_ಠ's Avatar
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    Can you answer this question correctly?

    The time is 3:15
    What is the angle between the hour hand and the minute hand?
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  2. #2
    Devil's Advocate SlyMaelstrom's Avatar
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    7.5 degrees?
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    NA if it's digital, hysteresis if it's analog.

    'The answer to this is not zero! The hour hand, remember, moves as well. The hour hand moves a quarter of the way between three and four, so it moves a quarter of a twelfth (1/48) of 360 degrees. So the answer is seven and a half degrees, to be exact.'
    I'm not immature, I'm refined in the opposite direction.

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    awwww, at least wait 'til someone gets it wrong.
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    Devil's Advocate SlyMaelstrom's Avatar
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    Quote Originally Posted by ಠ_ಠ View Post
    awwww, at least wait 'til someone gets it wrong.
    You're on a programming forum, how many people are you really expecting to get this wrong? Many of our professional lives revolve around the science of problem solving and logical thinking.
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  6. #6
    spurious conceit MK27's Avatar
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    ..
    C programming resources:
    GNU C Function and Macro Index -- glibc reference manual
    The C Book -- nice online learner guide
    Current ISO draft standard
    CCAN -- new CPAN like open source library repository
    3 (different) GNU debugger tutorials: #1 -- #2 -- #3
    cpwiki -- our wiki on sourceforge

  7. #7
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    Quote Originally Posted by SlyMaelstrom View Post
    how many people are you really expecting to get this wrong?
    more than 0
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  8. #8
    Woof, woof! zacs7's Avatar
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    > What is the angle between the hour hand and the minute hand?
    Implementation defined.


    Winner.

  9. #9
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    I'm with Zacs7 on this - the amount and step of the movement of the hour hand in relation to the second hand is defined only in an "ideal" clock/watch, but actual implementations may use arbitrary "steppiness". Most likely, the hour hand moves once every minute, but it may move once every two minutes, once every 30 seconds or once every second - or any other amount.

    If we are talking ideal clock, then 7.5 degrees (0.25 * 360/12) would be correct.

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  10. #10
    Woof, woof! zacs7's Avatar
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    For example, the 10-hour clock http://www.antique-horology.org/_Edi...Images/181.jpg

    And yes this clock was used. I'm sure there are countless other analog clocks. Perhaps your question gave not enough information

  11. #11
    Hail to the king, baby. Akkernight's Avatar
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    I'm lost :S an analog clock like 00:00 doesn't move at all, so it has to be zero :O
    Currently research OpenGL

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    Quote Originally Posted by Akkernight View Post
    I'm lost :S an analog clock like 00:00 doesn't move at all, so it has to be zero :O
    Do you mean a DIGITAL clock?

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  13. #13
    Devil's Advocate SlyMaelstrom's Avatar
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    Quote Originally Posted by zacs7 View Post
    Implementation defined.


    Winner.
    I considered this, naturally. However, if I've learned anything from my professional experience, I've learned that it's better to give the answer they expect to hear and let it be rather than give the right answer and try to explain why.
    Sent from my iPadŽ

  14. #14
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    Quote Originally Posted by zacs7 View Post
    For example, the 10-hour clock http://www.antique-horology.org/_Edi...Images/181.jpg

    And yes this clock was used. I'm sure there are countless other analog clocks. Perhaps your question gave not enough information
    lol, metric clocks
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