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!

 

[Eagle Mum]

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!

Many maths textbooks need better proofreading. Perhaps the publishers might have openings and you could monetize your hobby. Otherwise, if you had your own website and posted all your solutions in a curated system, I’d bet you’d get a lot of interest & traffic and possibly be able to monetize that instead.