Coroneous '*' Notation (1 Viewer)

[ivanradoszyce]

Hi,

I have been writing solutions to the book Extension 2- Unit 4 by Coroneos. What a great book!

However, I have come across a '*' notation many times. What exactly does Jim Coroneos mean by this? See diagram below. He tends to use it for distances as well as sizes. Is there a 'definite' meaning?

 

[tywebb]

That's great!

Are you aware that this has been done before? - by Jose Lumi back in 2008

but I think it's out-of-print now

i have them though

 

[ivanradoszyce]

That's great!

Are you aware that this has been done before? - by Jose Lumi back in 2008

but I think it's out-of-print now

i have them though

View attachment 46857
View attachment 46858

Wow! I didn't know this existed. Even though I enjoy scratching my head on a few of Jim's questions, it would be nice to get hold of a copy as a backup. You don't know where one could obtain a copy tywebb?

So back to the original query. What does the "*" mean in some of his questions?

 

[wizzkids]

So back to the original query. What does the "*" mean in some of his questions?

* means complex conjugate

 

[tywebb]

You don't know where one could obtain a copy tywebb?

as i said before it is out-of-print

it didn't come with ebook either

nevertheless a small part of it is available online - lumi's solutions to the famous "coroneos 100":

https://4unitmaths.com/coroneos100-lumi-sol.pdf

 

[ivanradoszyce]

Thanks tywebb.

I didn't realize Lumi wrote solutions to the "coroneos 100". Even though I have written my own solutions it would be interesting to compare techniques.

 

[tywebb]

but I think it's out-of-print now

turns out these are back in print:

BOOK 9 100% WORKED SOLUTIONS 4 UN

Book 9: 100% Worked Solutions for Coroneos MATHEMATICS Revised Edition 4 Unit Course

www.fivesenseseducation.com.au

and

BOOK 10 100% WORKED SOLUTIONS 4 UN

Book 9: 100% Worked Solutions for Coroneos MATHEMATICS 4 Unit Supplement New Revised Edition

www.fivesenseseducation.com.au

but they $40 each so dunno if u wanna get

 

[ivanradoszyce]

Thanks tywebb.

I know the books exist, in fact I have them. But some of the solutions need a bit of work or simply nonexistent. The response to some solutions is 'for teachers'. However, they do offer an alternative solutions for some problems.

 

[v.tex]

Hi,

I have been writing solutions to the book Extension 2- Unit 4 by Coroneos. What a great book!

However, I have come across a '*' notation many times. What exactly does Jim Coroneos mean by this? See diagram below. He tends to use it for distances as well as sizes. Is there a 'definite' meaning?

may i ask what you did, are doing in uni?

 

[ivanradoszyce]

You may ask.

Old Pure & Applied Mathematics teacher. Now I just enjoy doing NSW Mathematics and Uni mathematics as a 'hobby'. Majored in Applied Mathematics. The NSW course is of particular interest since a CAS calculator is not required, unlike VCE. I still use my HP 15C!