0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
向量（x+yi)向左转a角度，大小为原来的k倍，得到向量（x’+y’i)转换公式：<br />
^
0_0_17914706_16687.cpp:2:1: error: stray '\220' in program
0_0_17914706_16687.cpp:2:1: error: stray '\221' in program
0_0_17914706_16687.cpp:2:1: error: stray '\351' in program
0_0_17914706_16687.cpp:2:1: error: stray '\207' in program
0_0_17914706_16687.cpp:2:1: error: stray '\217' in program
0_0_17914706_16687.cpp:2:1: error: stray '\357' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\210' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\220' in program
0_0_17914706_16687.cpp:2:1: error: stray '\221' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\267' in program
0_0_17914706_16687.cpp:2:1: error: stray '\246' in program
0_0_17914706_16687.cpp:2:1: error: stray '\350' in program
0_0_17914706_16687.cpp:2:1: error: stray '\275' in program
0_0_17914706_16687.cpp:2:1: error: stray '\254' in program
0_0_17914706_16687.cpp:2:1: error: stray '\350' in program
0_0_17914706_16687.cpp:2:1: error: stray '\247' in program
0_0_17914706_16687.cpp:2:1: error: stray '\222' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\272' in program
0_0_17914706_16687.cpp:2:1: error: stray '\246' in program
0_0_17914706_16687.cpp:2:1: error: stray '\357' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\214' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\244' in program
0_0_17914706_16687.cpp:2:1: error: stray '\247' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\260' in program
0_0_17914706_16687.cpp:2:1: error: stray '\217' in program
0_0_17914706_16687.cpp:2:1: error: stray '\344' in program
0_0_17914706_16687.cpp:2:1: error: stray '\270' in program
0_0_17914706_16687.cpp:2:1: error: stray '\272' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\216' in program
0_0_17914706_16687.cpp:2:1: error: stray '\237' in program
0_0_17914706_16687.cpp:2:1: error: stray '\346' in program
0_0_17914706_16687.cpp:2:1: error: stray '\235' in program
0_0_17914706_16687.cpp:2:1: error: stray '\245' in program
0_0_17914706_16687.cpp:2:1: error: stray '\347' in program
0_0_17914706_16687.cpp:2:1: error: stray '\232' in program
0_0_17914706_16687.cpp:2:1: error: stray '\204' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\200' in program
0_0_17914706_16687.cpp:2:1: error: stray '\215' in program
0_0_17914706_16687.cpp:2:1: error: stray '\357' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\214' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\276' in program
0_0_17914706_16687.cpp:2:1: error: stray '\227' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\210' in program
0_0_17914706_16687.cpp:2:1: error: stray '\260' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\220' in program
0_0_17914706_16687.cpp:2:1: error: stray '\221' in program
0_0_17914706_16687.cpp:2:1: error: stray '\351' in program
0_0_17914706_16687.cpp:2:1: error: stray '\207' in program
0_0_17914706_16687.cpp:2:1: error: stray '\217' in program
0_0_17914706_16687.cpp:2:1: error: stray '\357' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\210' in program
0_0_17914706_16687.cpp:2:1: error: stray '\342' in program
0_0_17914706_16687.cpp:2:1: error: stray '\200' in program
0_0_17914706_16687.cpp:2:1: error: stray '\231' in program
0_0_17914706_16687.cpp:2:1: error: stray '\342' in program
0_0_17914706_16687.cpp:2:1: error: stray '\200' in program
0_0_17914706_16687.cpp:2:1: error: stray '\231' in program
0_0_17914706_16687.cpp:2:1: error: stray '\350' in program
0_0_17914706_16687.cpp:2:1: error: stray '\275' in program
0_0_17914706_16687.cpp:2:1: error: stray '\254' in program
0_0_17914706_16687.cpp:2:1: error: stray '\346' in program
0_0_17914706_16687.cpp:2:1: error: stray '\215' in program
0_0_17914706_16687.cpp:2:1: error: stray '\242' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\205' in program
0_0_17914706_16687.cpp:2:1: error: stray '\254' in program
0_0_17914706_16687.cpp:2:1: error: stray '\345' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\217' in program
0_0_17914706_16687.cpp:2:1: error: stray '\357' in program
0_0_17914706_16687.cpp:2:1: error: stray '\274' in program
0_0_17914706_16687.cpp:2:1: error: stray '\232' in program
0_0_17914706_16687.cpp:3:1: error: stray '\342' in program
x’=x*cos(a)-y*sin(a);<br />
^
0_0_17914706_16687.cpp:3:1: error: stray '\200' in program
0_0_17914706_16687.cpp:3:1: error: stray '\231' in program
0_0_17914706_16687.cpp:4:1: error: stray '\342' in program
y’=y*cos(a)+x*sin(a);<br />
^
0_0_17914706_16687.cpp:4:1: error: stray '\200' in program
0_0_17914706_16687.cpp:4:1: error: stray '\231' in program
0_0_17914706_16687.cpp:5:1: error: stray '\342' in program
=>(x’+y’i)=k*(cos(a)+sin(a)i)*(x+yi);<br />
^
0_0_17914706_16687.cpp:5:1: error: stray '\200' in program
0_0_17914706_16687.cpp:5:1: error: stray '\231' in program
0_0_17914706_16687.cpp:5:1: error: stray '\342' in program
0_0_17914706_16687.cpp:5:1: error: stray '\200' in program
0_0_17914706_16687.cpp:5:1: error: stray '\231' in program
0_0_17914706_16687.cpp:6:1: error: stray '\345' in program
可以看出成等比数列；<br />
^
0_0_17914706_16687.cpp:6:1: error: stray '\217' in program
0_0_17914706_16687.cpp:6:1: error: stray '\257' in program
0_0_17914706_16687.cpp:6:1: error: stray '\344' in program
0_0_17914706_16687.cpp:6:1: error: stray '\273' in program
0_0_17914706_16687.cpp:6:1: error: stray '\245' in program
0_0_17914706_16687.cpp:6:1: error: stray '\347' in program
0_0_17914706_16687.cpp:6:1: error: stray '\234' in program
0_0_17914706_16687.cpp:6:1: error: stray '\213' in program
0_0_17914706_16687.cpp:6:1: error: stray '\345' in program
0_0_17914706_16687.cpp:6:1: error: stray '\207' in program
0_0_17914706_16687.cpp:6:1: error: stray '\272' in program
0_0_17914706_16687.cpp:6:1: error: stray '\346' in program
0_0_17914706_16687.cpp:6:1: error: stray '\210' in program
0_0_17914706_16687.cpp:6:1: error: stray '\220' in program
0_0_17914706_16687.cpp:6:1: error: stray '\347' in program
0_0_17914706_16687.cpp:6:1: error: stray '\255' in program
0_0_17914706_16687.cpp:6:1: error: stray '\211' in program
0_0_17914706_16687.cpp:6:1: error: stray '\346' in program
0_0_17914706_16687.cpp:6:1: error: stray '\257' in program
0_0_17914706_16687.cpp:6:1: error: stray '\224' in program
0_0_17914706_16687.cpp:6:1: error: stray '\346' in program
0_0_17914706_16687.cpp:6:1: error: stray '\225' in program
0_0_17914706_16687.cpp:6:1: error: stray '\260' in program
0_0_17914706_16687.cpp:6:1: error: stray '\345' in program
0_0_17914706_16687.cpp:6:1: error: stray '\210' in program
0_0_17914706_16687.cpp:6:1: error: stray '\227' in program
0_0_17914706_16687.cpp:6:1: error: stray '\357' in program
0_0_17914706_16687.cpp:6:1: error: stray '\274' in program
0_0_17914706_16687.cpp:6:1: error: stray '\233' in program
0_0_17914706_16687.cpp:7:1: error: stray '\351' in program
题目就是求它的和的极限。<br />
^
0_0_17914706_16687.cpp:7:1: error: stray '\242' in program
0_0_17914706_16687.cpp:7:1: error: stray '\230' in program
0_0_17914706_16687.cpp:7:1: error: stray '\347' in program
0_0_17914706_16687.cpp:7:1: error: stray '\233' in program
0_0_17914706_16687.cpp:7:1: error: stray '\256' in program
0_0_17914706_16687.cpp:7:1: error: stray '\345' in program
0_0_17914706_16687.cpp:7:1: error: stray '\260' in program
0_0_17914706_16687.cpp:7:1: error: stray '\261' in program
0_0_17914706_16687.cpp:7:1: error: stray '\346' in program
0_0_17914706_16687.cpp:7:1: error: stray '\230' in program
0_0_17914706_16687.cpp:7:1: error: stray '\257' in program
0_0_17914706_16687.cpp:7:1: error: stray '\346' in program
0_0_17914706_16687.cpp:7:1: error: stray '\261' in program
0_0_17914706_16687.cpp:7:1: error: stray '\202' in program
0_0_17914706_16687.cpp:7:1: error: stray '\345' in program
0_0_17914706_16687.cpp:7:1: error: stray '
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