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我将绘制由参数积分定义的函数 f(x)
load("c:/work3/nint.mac"); g(x,y):=x*y; f(x):=nint(g(x,t),t,1,100); wxplot2d(f(x),['x,0,10]);
plot2d:表达式在绘图范围内的任何地方都计算为非数字值。