xinttools 帮助
xinttools包允许绘制函数总和。给定一个函数f(x,n),这些曲线 f(x,1) f(x,1) + f(x,2) f(x,1) + f(x,2) + f(x,3) 将使用绘制 \def\myterm#1{#1*x + 7} ... \xintFor #1 in {1,2,3} \do {% \addplot+[samples=300,smooth] {\xintListWithSep{+}{\xintApply\myterm{\xintSeq{0}{#1}}}}; } 有没有办法只有最后一条曲线...