Plotting issue where the curve is missing

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Athira T Das
Athira T Das 2022-6-15
评论： Athira T Das 2022-6-15
Ran in:
w=linspace(-5,-0.01)
w = 1×100
-5.0000 -4.9496 -4.8992 -4.8488 -4.7984 -4.7480 -4.6976 -4.6472 -4.5968 -4.5464 -4.4960 -4.4456 -4.3952 -4.3447 -4.2943 -4.2439 -4.1935 -4.1431 -4.0927 -4.0423 -3.9919 -3.9415 -3.8911 -3.8407 -3.7903 -3.7399 -3.6895 -3.6391 -3.5887 -3.5383
s=100;
for i=1:s
F = (exp(-1.863*10^-2)+w(i).^(-2)*exp(-1.9*10^-4)-2*w(i).^(-1)*exp(-9.41*10^-3));
O=4*pi*F
end
O = 17.8165
O = 17.8775
O = 17.9398
O = 18.0036
O = 18.0688
O = 18.1355
O = 18.2038
O = 18.2737
O = 18.3453
O = 18.4186
O = 18.4937
O = 18.5707
O = 18.6496
O = 18.7305
O = 18.8134
O = 18.8986
O = 18.9859
O = 19.0757
O = 19.1678
O = 19.2625
O = 19.3598
O = 19.4598
O = 19.5628
O = 19.6687
O = 19.7777
O = 19.8899
O = 20.0056
O = 20.1248
O = 20.2477
O = 20.3745
O = 20.5054
O = 20.6406
O = 20.7803
O = 20.9247
O = 21.0740
O = 21.2285
O = 21.3886
O = 21.5544
O = 21.7262
O = 21.9046
O = 22.0897
O = 22.2819
O = 22.4818
O = 22.6898
O = 22.9062
O = 23.1318
O = 23.3670
O = 23.6125
O = 23.8689
O = 24.1370
O = 24.4176
O = 24.7116
O = 25.0199
O = 25.3436
O = 25.6838
O = 26.0418
O = 26.4191
O = 26.8172
O = 27.2377
O = 27.6828
O = 28.1544
O = 28.6550
O = 29.1873
O = 29.7543
O = 30.3595
O = 31.0067
O = 31.7004
O = 32.4455
O = 33.2479
O = 34.1143
O = 35.0523
O = 36.0710
O = 37.1808
O = 38.3941
O = 39.7255
O = 41.1926
O = 42.8163
O = 44.6221
O = 46.6410
O = 48.9113
O = 51.4808
O = 54.4097
O = 57.7748
O = 61.6760
O = 66.2442
O = 71.6551
O = 78.1491
O = 86.0626
O = 95.8792
O = 108.3171
O = 124.4830
O = 146.1611
O = 176.3935
O = 220.7429
O = 290.3580
O = 410.5503
O = 650.2011
O = 1.2603e+03
O = 3.8680e+03
O = 1.2814e+05
plot(w,O)

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采纳的回答

KSSV
KSSV 2022-6-15
编辑：KSSV 2022-6-15
w=linspace(-5,-0.01) ;
s=100;
O = zeros(size(w)) ;
for i=1:s
F = (exp(-1.863*10^-2)+w(i).^(-2)*exp(-1.9*10^-4)-2*w(i).^(-1)*exp(-9.41*10^-3));
O(i)=4*pi*F ; %<-- save O into an array
end
plot(w,O)
Also note that, you need not to use loop.
w=linspace(-5,-0.01) ;
F = (exp(-1.863*10^-2)+w.^(-2)*exp(-1.9*10^-4)-2*w.^(-1)*exp(-9.41*10^-3));
O=4*pi*F ;
plot(w,O)

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