[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPgy5L98JEPf83NIsz5B23nVkoQ6qSNdnp9EJfZ1nHE4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":28,"type":29},[],"2023-05-11 21:47:16",6456437,[8,9],"√","×",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},11,"b9b72efcbf753c7867e254c2daef997b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffecea105c3381deef9b24e0dcbb0fa3d.jpg","Matlab软件基础及其应用","a9c3ced58e844236baad88d1c1786f81","","运行以下程序,绘制的是3条直线.X=[1,2,3];Y=[1,2,3];Z=[1,2,3];plot3(X,Y,Z,'b')",[19,30,39,46,55,64,67,76,85,90],{"answer":20,"createTime":5,"id":21,"options":22,"question":27,"source":28,"type":29},[],6456432,[23,24,25,26],"plot","roots","mesh","surface","一元函数图像常用的作图命令是( )","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":28,"type":29},[],6456433,[34,35,36,37],"1;10","0.5;20","0.5;21","1:;20","x=1:0.5:10的步长是( ),x取点的总个数是( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":45,"source":28,"type":29},[],6456434,[25,43,44,23],"meshgrid","plot3","二元函数的图像是三维曲面,在作图时需要形成网格矩阵,用到的命令是( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":54,"source":28,"type":29},[],6456435,[50,51,52,53],"1","2","3","4",">> t=0:0.5:10; >> y1=exp(-0.1*t); >> y2=exp(-0.2*t); >> y3=exp(-0.5*t); >> plot(t,y1,'-ob',t,y2,':*r',t,y3,'-.^g') 画的是几条曲线( )",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":28,"type":29},[],6456436,[59,60,61,62],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa460a46d2a1bfbf4e149b5bf6571acf3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3e0ef59211a9a1327e5fe8cb17b3baca.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbe3b7c587b2c3ff9dfbc017281eb847d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd997d47f9b99ff713391d61a30c513ab.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff37ca467fcb73082b0980a400e6b0c0f.png\">",{"answer":65,"createTime":5,"id":6,"options":66,"question":17,"source":28,"type":29},[],[8,9],{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":28,"type":29},[],6456438,[71,72,73,74],"冒号(:)","逗号(,)","分号(;)","百分号(%)","当在命令行窗口执行命令时,如果不想立即在命令行窗口中输出结果,可以在命令后加上( )",{"answer":77,"createTime":78,"id":79,"options":80,"question":83,"source":28,"type":84},[],"2023-05-11 21:48:50",6460931,[81,82],"正确","错误","函数作图的基本原理是描点法,所以第一步先要给出自变量的取点",3,{"answer":86,"createTime":78,"id":87,"options":88,"question":89,"source":28,"type":84},[],6460932,[81,82],"作图 y=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F44de72553abd775dc59cdfbf0a9bf336.webp\">时,命令语句可以是 >> x=1:0.5:10;>>y=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe3cda31aeccd3dd434ba85fd9f464854.webp\">",{"answer":91,"createTime":78,"id":92,"options":93,"question":94,"source":28,"type":84},[],6460933,[81,82],"函数作图时,取点越多图像越光滑,同时要求步长越小"]