Download presentation
Presentation is loading. Please wait.
Published byMayra Bramhall Modified over 10 years ago
1
第十八單元 平面上之參數方程式
2
Parametric Equations A plane curve is determined by a pair of parametric equations t, Called the parameter, as measuring time
3
Example Eliminate the parameter in Solution
4
Example Solution
5
Example
7
Differentiation for parametric curve Theorem
8
Example
9
Area
10
Example
11
Some Famous Curves www.chit.edu.tw/mathmet
12
Some Famous Curves
14
> with(plots): > g1:=animatecurve([3*t/(1+t^3),3*t^2/(1+t^3),t=0..40],numpoints=400,frames=40, scaling=unconstrained): g2:=animatecurve([3*t/(1+t^3),3*t^2/(1+t^3),t=-0.6..-0.1],color=black,numpoints=400,frames=40, > scaling=unconstrained): g3:=animatecurve([3*t/(1+t^3),3*t^2/(1+t^3),t=-100..-1.6],color=blue,numpoints=400,frames=40,scaling=unconstrained): display(g1,g2,g3);
15
Swallowtail Catastrophe Curve
16
graph
17
Ovals of Cassini
19
Witch of Agnesi www.chit.edu.tw/mathmet
20
Newton’s Parabola
21
Newton’s Parabola (animator)
22
單元結語 曲線以參數式來表示,在計算上及表示上 更加明顯和方便。 還有許多曲線的例子,在此無法一一介紹, 同學可進入本校網站 www.chit.edu.tw/mathmet 進入函數圖形,那裡有更動畫圖形和微積 分相關的分析。 www.chit.edu.tw/mathmet
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.