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the input N change in formula input

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sonu
sonu 2013-5-4
hi can any one tell me i have a formula D = −(2πc/λ^2) N where the c and λ are constant.but i want to make a program using matlab in which i give the any value of N its show the output. can any one tell m what i do... thnx

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Azzi Abdelmalek
Azzi Abdelmalek 2013-5-4
Lamda=1;
c=2;
D = @(N) -(2*pi*c/Lamda^2)*N
D(5) % for N=5
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Azzi Abdelmalek
Azzi Abdelmalek 2013-5-4
编辑：Azzi Abdelmalek 2013-5-4
You can use
N=input('enter N')
Lamda=1;
c=2;
D = -(2*pi*c/Lamda^2)*N;
display(D)
You should learn Matlab basics

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