wolframalpha数学使用教程

用WolframAlpha求极限输入：Limitsin(x)/xasx->0用WolframAlpha求无穷小的阶(x->0的泰勒级数)用WolframAlpha求导数用WolframAlpha求高阶导数n阶导数的英语是：nthderivative用WolframAlpha求参数方程的导数用WolframAlpha求方程的根用WolframAlpha求积分用WolframAlpha求平面图形的面积参考：HYPERLINK"http://xuxzmail.blog.163.com/blog/static/251319162011730102030274/"http://xuxzmail.blog.163.com/blog/static/251319162011730102030274/Wolfram：HYPERLINK"http://www.wolframalpha.com/examples/"http://www.wolframalpha.com/examples/