Recent content by kash-k

[FONT="Century Gothic"]I was just doing some revision and came across a sticky thought - Suppose you got two appraisers for 9 car damages and both give different prices for the repair. Would the samples be independent or paired? I reckon it's paired but I can't put a reasoning behind it! And...

anyone ?

i want to make this symmetric in both x and y with 2 graph by using the cartesian coordinate system with the plot3D command and secondly using the cyclindrical coordinate system using the parametricplot3d command. been a long time since I've used mathematica but i don't think your codes does the...

I'm trying to plot this f (x, y) = ln(x^2 + y^2 ) any one got a idea how to?

I guess at the end of the day it was a calculating mistake on my part. And for the law I misunderstood. "The leading coefficient of each nonzero row is one" Thank you for the help. Regards ps. so the last row is 0 0 1 2

20 is wrong way wrong

3x+2y-z=5 -2x+2y+5z=2 x-2y+3z=11 Now we are required to solve these linear equations via Gaussian method. I put these in an echelon form and this how I did it: Switch L1 with L3 to make life easier. L1: x-2y+3z=11 L2:-2x+2y+5z=2 L3:3x+2y-z=5 Then I went to work to remove...

thats a good one but that would take longer than i like. i need something short but it can only answered by a mathematician, u know what i mean.

i just fixed up my dads computer and i need to put a new password for his account so all my little brothers don't go accessing it. i want to be a little creative. i want to create a password but only leave him a hint so he has the figure the password out himself. i was thinking i should make the...

i need some help with this question - lets say if A = |val1 val2 | |val3 1 | what would AA^t equal? and AA^t and A^T.T are symmetrical. is this true for any 2x2 matrix? thanks in advance

did you read it? because i read it before i posted and let me tell you it's not helpful.

|1 -5 2 |-5 |3 -14 3 |-8 |4 -18 8 |-8 above is a augmented matrix of a 3 equations. now i know that you can solve these via simul. equations however, my textbook solves them via some gaussian method but doesn't mention how it's done. it just shows - 1 -5 2 |-5 0 1 -3 |7 0 0...

here is about half the assignment, if u can do this easily u can probably do the whole thing. Question 2 (3.5 marks) Plot the points A(val1, val2), B(val1, val3) and C(val2, val3) on a piece of grid paper and join the points to form a right-angled triangle DABC . We wish to carry out the...

In a perfect world I'd do that but it ain't, so here we are back at square one. I got till 1st of September to get this done, It'll take me longer to understand the question let alone answer it. I'm happy to give a $100 to anyone willing to help

here u go. the assignment in full