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allsmiles

  • 2 years ago

Why is f(t)= 5t-2*cos(5000*pi*t) not periodic? Does it not stay at amplitude 2 to-2 and oscillates forever?

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  1. Dido525
    • 2 years ago
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    But because of that t, The amplitude can vary.

  2. allsmiles
    • 2 years ago
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    the 5t?

  3. Dido525
    • 2 years ago
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    Your amplitude is (5t-2) right?

  4. allsmiles
    • 2 years ago
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    nono

  5. allsmiles
    • 2 years ago
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    5t-(2cos(5000*pi*t))

  6. allsmiles
    • 2 years ago
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    sorry for the confusion

  7. allsmiles
    • 2 years ago
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    I guess the 5t changes the amplitude everytime

  8. zepdrix
    • 2 years ago
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    Yah so the cosine part is doing the wave. Back and forth back and forth, periodic yes. But then the 5t is linear, causing the wave to move upward.

  9. Dido525
    • 2 years ago
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    That 5t causes a vertical pellet thought depending on the value of t.

  10. Dido525
    • 2 years ago
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    shift*

  11. allsmiles
    • 2 years ago
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    so periodic it has to be a constant pattern can't keep changing

  12. allsmiles
    • 2 years ago
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    I see it now thanks for your guys' help wish I could give both of you best answers

  13. zepdrix
    • 2 years ago
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    Yah periodic would mean it REPEATS. Yes the PATTERN is repeating, but the values are not. The values keep getting larger and larger. I can see how that might be confusing though :)

  14. allsmiles
    • 2 years ago
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    Yeah gotcha thanks a lot man!

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