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monroe17

  • 2 years ago

can someone help me write a program for MATLAB for cos(theta) SO FAR I HAVE: clc clear theta=0:pi:4*pi; plot(theta,cos(theta)) xlabel('theta') ylabel('cos(theta)') grid off for some reason it's display the graph not 'curve' and it's not display the x values a 0,pi,2pi,3pi,4pi... someone help please :/

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  1. Libniz
    • 2 years ago
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    for some reason it's display the graph not 'curve' and it's not display the x values a 0,pi,2pi,3pi,4pi... ^ what do you mean?

  2. monroe17
    • 2 years ago
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    give me a sec and I'll upload the problem exactly.. it has a picture..

  3. monroe17
    • 2 years ago
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    Write a MATLAB program that generates the following plot:(Note: you also need to label the x and y axis)

  4. monroe17
    • 2 years ago
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    so far.. i have : clc clear theta=0:pi:4*pi; plot(theta,cos(theta)) xlabel('theta') ylabel('cos(theta)') grid off but it still doesn't look like the plot it gives and i don't know what else to do

  5. Libniz
    • 2 years ago
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    I will try it on my machine

  6. monroe17
    • 2 years ago
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    okay, thank you!

  7. Libniz
    • 2 years ago
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    I see your problems , you needs more values for theta than just 4 values

  8. monroe17
    • 2 years ago
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    how do it do that?

  9. Libniz
    • 2 years ago
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    Try that

  10. Libniz
    • 2 years ago
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    clc clear x = 0:pi/1000:4*pi plot(x,cos(x)) xlabel('theta') ylabel('cos(theta)') grid off

  11. monroe17
    • 2 years ago
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    it's perfect other then the x values don't appear the same as in the picture i uploaded.. you see that?

  12. Libniz
    • 2 years ago
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    yeah, that's what I am looking at too

  13. Libniz
    • 2 years ago
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    try the following

  14. Libniz
    • 2 years ago
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    clc clear x = 0:pi/1000:4*pi theta=0:pi:4*pi plot(x,cos(x)) set(gca,'XTick',0:pi:4*pi) set(gca,'XTickLabel',{'0','pi','2 pi','3 pi',' 4 pi'}) xlabel('theta') ylabel('cos(theta)') grid off

  15. monroe17
    • 2 years ago
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    it's perfect!!! thank you! my goodness you're amazing!

  16. Libniz
    • 2 years ago
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    welcome

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