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scan elements one-by-one

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Kugen Raj
Kugen Raj 2012-3-6
评论： Image Analyst 2022-12-5
lets say i have a data:
p1=34 35 36 37 38 75 76 77 78 79 80. p2=42 43 44 45 46 47 82 83 84 85 86
i now have to do (75-38) in p1 set and (82-47) in p2 set. how can I do this not by using just the vector subtraction.

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回答（5 个）

Sean de Wolski
Sean de Wolski 2012-3-6
doc diff %?
Thomas
Thomas 2012-3-6
a1=max(diff(p1));
a2=max(diff(p2));
Image Analyst
Image Analyst 2012-3-6
Answering you as directly as possible:
answerForP1 = p1(6) - p1(5);
answerForP2 = p2(7) - p2(6);
Not sure why you asked about those elements only, or how that relates to your subject line about scanning, so you might want to clarify.
  1 个评论
Kugen Raj
Kugen Raj 2012-3-6
actually i need to calculate the 3db beamwidth for a beam pattern. I have the value for p(1,360). im looping the beamwidth calculation for 100 times. so, i will have to find the -3db value in each round of loop and calculate the beamwidth. for each round of loop, i will get some velue for P:
p=20*log10(YY/max(YY));normalized power
xx=round(p);rounding the p value
P=find(xx==-3);find the -3db value
P=44 45 46 74 75 287 288 316 317 318.
so, now i need to do the (74-46) for the 1st peak and (316-288) for the 2nd peak. this is why i need a way to do the calculation to perform the subtraction.

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Pruthvirajsinh
Pruthvirajsinh 2022-12-5
Please write a Matlab function to print the following Table. Your function should reproduce this table with exactly the same format, including of space length and word alignment.
Day Monday Tuesday Wednesday Thursday Friday Temp 78 80 84 73 56 Wind 8.6 7.9 5.2 3.6 8.2 Pressure 1.01e5 1.03e5 1.12e5 1.25e5 1.09e5
  1 个评论
Image Analyst
Image Analyst 2022-12-5
You posted your homework as an "Answer" to a totally unrelated question. I'll give you a few minutes to create your own answer then I will delete this post that you posted in error.
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started:
How do I get help on homework questions on MATLAB Answers? - MATLAB Answers - MATLAB Central
Obviously we can't give you the full solution because you're not allowed to turn in our code as your own.

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Pruthvirajsinh
Pruthvirajsinh 2022-12-5
Day Monday Tuesday Wednesday Thursday Friday Temp 78 80 84 73 56 Wind 8.6 7.9 5.2 3.6 8.2 Pressure 1.01e5 1.03e5 1.12e5 1.25e5 1.09e5

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