什么是extremal graph

什么是extremal graph 什么是GRAPH graph是什么意思 wavefom graph chart,graph的辨别? table/ graph/ chart 区别 friendship graph是什么意思? graph partition是什么意思 要画graph(图表) this graph cannot preview The disjunctive graph This graph cannot preview this graph cannot preriew the graph is 都是图表,area graph 和line graph有什么区别? proe怎样定义graph 曲线 chart,plot,graph的区别 graph 与diagram的区别