MyWidgets -Plotter(製圖器) Click to Try Need more widgets? Click here! [Usage]: This is an easy to use plotter that anyone can plot the graph of a function interested with the range of x and y from minimum to maximum. [使用說明]: 這是一個自製的方便好用簡易製圖器，只要輸入(1)函數, (2)x與y值範圍的最大值與最小值，就可以得出你想要的任何函數圖形。