搜索内容 搜索用户

# 10 麦片

050

1主题 0最佳答案 发表于 2020-11-20 13:14:35 | 显示全部楼层 |阅读模式
 两个企业分别决定两个变量：电商决定p、s，供应商决定w、τ。求这四个决策变量。我用的代码如下：syms p c r s a b e k h w; z0=(p-w)*(1-p+r*s-a*(b-b*e))-1/2*k*s^2; z2=(w-c)*(1-p+r*s-a*(b-b*e))-1/2*h*e^2; de2=diff(z2,e); dw=diff(z2,w); dp2=diff(z0,p); ds2=diff(z0,s); [W,E2]=solve(dw,de2,w,e); [P2,S2]=solve(dp2,ds2,p,s); 得出来最优解的答案里面还有变量，就是p的答案里还有w、s，e，正确答案应该是只有参数的，希望大神们看到，救助一下小弟，谢谢啦！ 本版积分规则 回帖后跳转到最后一页
{"ft_lang_label":"__label__zh","ft_lang_prob":0.57242405,"math_prob":0.99847114,"size":350,"snap":"2020-45-2020-50","text_gpt3_token_len":257,"char_repetition_ratio":0.11849711,"word_repetition_ratio":0.0,"special_character_ratio":0.4342857,"punctuation_ratio":0.19090909,"nsfw_num_words":0,"has_unicode_error":false,"math_prob_llama3":0.960913,"pos_list":[0,1,2,3,4],"im_url_duplicate_count":[null,null,null,1,null],"WARC_HEADER":"{\"WARC-Type\":\"response\",\"WARC-Date\":\"2020-12-01T10:55:28Z\",\"WARC-Record-ID\":\"<urn:uuid:e6e69a94-2d28-4c50-9993-dcb59122bda7>\",\"Content-Length\":\"57954\",\"Content-Type\":\"application/http; msgtype=response\",\"WARC-Warcinfo-ID\":\"<urn:uuid:91df54de-6254-4489-ae29-1923955e6712>\",\"WARC-Concurrent-To\":\"<urn:uuid:c8c52104-1b08-43c3-95f4-fdee47fa166b>\",\"WARC-IP-Address\":\"218.93.127.64\",\"WARC-Target-URI\":\"https://www.ilovematlab.cn/thread-603837-1-1.html?s_tid=LandingPageTabqa\",\"WARC-Payload-Digest\":\"sha1:TLOPSCBVNAFAX5S56ZJLIV7IKYHZNF3G\",\"WARC-Block-Digest\":\"sha1:D3ZW6U6F2G4Y62E3NHFGVGNTUE7QTEWN\",\"WARC-Identified-Payload-Type\":\"application/xhtml+xml\",\"warc_filename\":\"/cc_download/warc_2020/CC-MAIN-2020-50/CC-MAIN-2020-50_segments_1606141674082.61_warc_CC-MAIN-20201201104718-20201201134718-00358.warc.gz\"}"}