Friday, February 1, 2008

Delta process

gradient = change in y
change in x

why then do I see gradient = lim change in y
∆h→0 change in x

What is the purpose of lim
∆h→0

Why is (x1, y1) always (x, y)

Why for (x2, y2) , x2 is always x + ∆h
What then is y2

In class we refer to a policeman, what is this policeman all about?

What is the denominator always and why?

What is the numerator always and why?

Why the numerator has to factorise to take out ∆h?

How can someone say where ∆h is substitute 0?

Logs

What really is logs?
Do you think this is an important aspect of maths?
How is logs related to exp?
What is the basic strategy in logs?

Missing students

A lot of students have not sign in and hence no comments from you.

Should I just give 0 / 10
You are to comment on each post.
If your comment is none of the relevant types, it should be viewed as none.

Next week I will post the student names or ids

Exponent

What is the purpose of exponent?
Is a quadratic an exponent?
It is said that everything in life involves some aspect of Maths, give some real life scenarios that involves the exponent aspect of mahs.

Wednesday, January 16, 2008

Rate of change

What is gradient?
What is the problem with finding gradient in a straight line?
What is the problem with finding gradient in a curve?
Is gradient in any way connected to rate of change?

Divide by 0

What is the result of 145/0?
In respect to real life what is this expression representing?

In finding the limit at the given value, the expression evaluates to 0/0,
what does this means, how will you handle a situation like this?

Limits

What really is limits in maths?
What is the use of the concept of limits in real life?