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[ Last edited by ÎÒÒª·É on 2013-5-15 at 17:54 ]
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2Â¥2013-05-15 18:10:10
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somomo91

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csgt0: ½ð±Ò+1, лл 2013-05-16 17:09:46
==============================
clear; clc
L = 10;
syms l1 l2
sum1 = symsum((l1+l2)^2*l1*l2,l2,0,L);
x_l = 0;
for l1 = 0:L
    x_l = x_l + eval(sum1);
end
disp(x_l)
==============================
3Â¥2013-05-15 18:12:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÒÒª·É

Ìú³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by somomo91 at 2013-05-15 18:12:28
==============================
clear; clc
L = 10;
syms l1 l2
sum1 = symsum((l1+l2)^2*l1*l2,l2,0,L);
x_l = 0;
for l1 = 0:L
    x_l = x_l + eval(sum1);
end
disp(x_l)
========================= ...

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4Â¥2013-05-15 18:37:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

somomo91

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

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ÒýÓûØÌû:
4Â¥: Originally posted by ÎÒÒª·É at 2013-05-15 18:37:12
Õ¦¼ÆËã³öÀ´Ö»ÓÐÒ»¸öֵѽ£¿...

Èç¹ûÄãÏëL+1¸öÖµµÄ»°
==============================
clear; clc
L = 10;
syms l1 l2
sum1 = symsum((l1+l2)^2*l1*l2,l2,0,L);
for l1 = 0:L
     x_l(l1) = x_l + eval(sum1);
end
========================= ...
5Â¥2013-05-15 18:39:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xu_don

Í­³æ (СÓÐÃûÆø)

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