Hello. hello, hello, my ordinary friends. I have two questions to you, for now:
1) In "Introduction to Number Theory" by Leo Moser (http://www.trillia.com/distr6/moser-number-us-one.pdf) there are equations in the first chapter that do not make sense - the series of argument are represented correctly, but the series of compositions (c(n)), (c*(n)) etc. have somehow "disappeared". If someone has an explanation to that phenomena, please enlighten me. Second part of my request
2) I would highly appreciate if you could link me to the e-sources that are adequate as studiying guides of mathematics for me (My knowledge of math for now, alas, is limited to high school courses taken and long forgotten).
Thank you in advance.