Meeting #9

Venue: Zhang Hui's House
Date: 9 Dec (Friday)
Time: 1pm to 4pm
Present: Amrit, Sarah, Shu Wei and Zhang Hui
Absent: None

Our Discussion
1. Read through the websites but did not quite understand the content
2.Did the minutes for previous and today's

Tasks to be done (15 Dec)
1. Re-read the website's given

Recorded by:
Zhanghui, Sarah, Shu Wei and Amrit

Meeting #8

Venue: School
Date: 2 Dec (Friday)
Time: 1.30pm to 2.30pm
Present: Mr Yeo, Sarah, Shu Wei and Zhang Hui
Absent: Amrit (food poisoning)

Our Discussion
1. Discussed on Differentiation
2. Discussed the possibilities of the end of our project
3. Explained to us how his method of finding the curvatures was not feasible

Tasks to be done (by 9 Dec)
1. Find how to calculate momentum
2. Research more about calculating related topics (eg. kinetic/potential energy)

Recorded by:
Zhang Hui, Shu Wei and Sarah

Meeting #7

Venue: school
Date: 22 Nov (Fri)
Time: 0830-1030
Present: Shu Wei, Sarah, Amrit
Absent: Zhang Hui


Our Discussion
1. Finalize the definition of ‘thrill’
–the thrill of a drop is the product of the angle of the steepest descent in the drop (in radians) and the total vertical distance in the drop. The thrill of the coaster is the sum of the thrills of each drop.

2. Learnt the programming of Graphmatica

3. Learnt the topic on differentiation other new mathematical skills which will aid us in our project. (see below)

Peak/ valley = dy/dx = 0 Steepest incli = 2x ^2 -7x ^4 + 10x ^2 + 6 for

-1 (smaller then or equals to) x (smaller then or equals to) 1.5
nation = dy/dx = maximum absolute value
Therefore, dy/dx = slope = inclination


Tasks to be done (by 2 Dec)
Ø Download Graphmatica from here
Ø Homework (using aforementioned Graphmatica)

Equation:

y = 2x ^2 - 7x ^4 +10x ^2 + 6 for

-1 (smaller then or equals to) x (smaller then or equals to) 1.5

1. Find dy/dx
2. Put it into Graphmatica and the visible area of the graph should be

-1 (smaller then or equals to) x (smaller then or equals to) 1.5

3. Find x when dy/dx =0

4. Identify the peaks and valleys

5. Find x that have the steepest descent/ascent

6. Find the angles of the steepest descent/ascent (using a tangent).

Recorded by: Shu Wei, Sarah, Amrit and Zhang Hui