background preloader

Electronics and Electrical Engineering Tools

An Engineers Quick References to Mathematics Algebra Help Math SheetThis algebra reference sheet contains the following algebraic operations addition, subtraction, multiplication, and division. It also contains associative, commutative, and distributive properties. There are example of arithmetic operations as well as properties of exponents, radicals, inequalities, absolute values, complex numbers, logarithms, and polynomials. This sheet also contains many common factoring examples. Calculus Integrals Math Sheet This calculus integral reference sheet contains the definition of an integral and the following methods for approximating definite integrals: left hand rectangle, right hand rectangle, midpoint rule, trapezoid rule, and Simpson’s rule. Related:  Math Resources and Portalsmath

Loan Calculator A loan is a contract between a borrower and a lender in which the borrower receives an amount of money (principal) that they are obligated to pay back in the future. Most loans can be categorized into one of three categories: Paying Back a Fixed Amount Periodically Use this calculator for basic calculations of common loan types such as mortgages, auto loans, student loans, or personal loans, or click the links for more detail on each. Paying Back a Lump Sum Due at Loan Maturity Paying Back a Predetermined Amount Due at Loan Maturity Use this calculator to compute the initial value of a bond/loan based on a predetermined face value to be paid back at bond/loan maturity. First Calculation: Fixed Amount Paid Periodically Many consumer loans fall into this category. Second Calculation: Single Lump Sum Due at Loan Maturity Many commercial loans or short-term loans are in this category. Third Calculation: Predetermined Lump Sum Paid at Loan Maturity Loan Basics for Borrowers Interest Rate Loan Term

The Thirty Greatest Mathematicians Click for a discussion of certain omissions. Please send me e-mail if you believe there's a major flaw in my rankings (or an error in any of the biographies). Obviously the relative ranks of, say Fibonacci and Ramanujan, will never satisfy everyone since the reasons for their "greatness" are different. I'm sure I've overlooked great mathematicians who obviously belong on this list. Following are the top mathematicians in chronological (birth-year) order. Earliest mathematicians Little is known of the earliest mathematics, but the famous Ishango Bone from Early Stone-Age Africa has tally marks suggesting arithmetic. Early Vedic mathematicians The greatest mathematics before the Golden Age of Greece was in India's early Vedic (Hindu) civilization. Top Thales of Miletus (ca 624 - 546 BC) Greek domain Thales was the Chief of the "Seven Sages" of ancient Greece, and has been called the "Father of Science," the "Founder of Abstract Geometry," and the "First Philosopher." Tiberius(?)

Water is dangerous This was found on the newsgroup: rec.humor.funny A student at Eagle Rock Junior High won first prize at the Greater Idaho Falls Science Fair, April 26. He was attempting to show how conditioned we have become to alarmists practicing junk science and spreading fear of everything in our environment. In his project he urged people to sign a petition demanding strict control or total elimination of the chemical "dihydrogen monoxide." And for plenty of good reasons, since: it can cause excessive sweating and vomiting it is a major component in acid rain it can cause severe burns in its gaseous state accidental inhalation can kill you it contributes to erosion it decreases effectiveness of automobile brakes it has been found in tumors of terminal cancer patients He asked 50 people if they supported a ban of the chemical. He feels the conclusion is obvious.

Interactive Statistical Calculation Pages s Math Resources - Integers: Operations with Signed Numbers Have you ever been to a party like this? Everyone is happy and having a good time (they are ALL POSITIVE). Suddenly, who should appear but the GROUCH (ONE NEGATIVE)! What happens to the party? But wait... is that another guest arriving? What if another grouch (A SECOND NEGATIVE) appears? Now that the two grouches are together the rest of the people (who were really positive all along) become happy once again. The moral of the story is that (at least in math, when multiplying or dividing) the number of positives don't matter, but watch out for those negatives!! To determine whether the outcome will be positive or negative, count the number of negatives: If there are an even number of negatives -and you can put them in pairs- the answer will be positive, if not... it'll be negative: Negatives in PAIRS are POSITIVE; NOT in pairs, they're NEGATIVE.

Understanding Evolution For Teachers Text only version LaTeX for Geometry Proof Step 0: Study LaTeX Algebra first here.Step 1: Open LaTeX Equation Editor window (click here) Lesson 1: How to set up the table structure. Copy and paste the code on the left box to LaTex Equation Editor. Lesson 2: How to create Geometry Symbols The code on the left side box created the symbols on the right side box. Missing Symbol Report Form Lesson 3: Proof Example Here is an example of a short proof writing in LaTeX. Lesson 4: How to write a geometry solution The way to write a geometric solution is the same as writing an Algebraic solution, except you will use geometry symbols.

Integer Number Line In this lesson,we will look at integers and the number line. Related Topics: More Lessons on Integers Integer Worksheets Integer Games Integers Integers consist of negative integers, zero and positive integers. Example: 0 is an integer but is neither positive nor negative. Negative numbers have a ‘–’ sign before them. Example: –3 is read as “negative three” +6 or 6 is read as “positive six” or “six” Opposite of a Number The opposite of a number is the number with the sign changed. The opposite of 4 is –4 The opposite of –6 is 6 Since 0 is neither positive nor negative, the opposite of 0 is also 0. Number Line Integers can be represented on the number line. An integer on the horizontal number line is greater than the number on its left and less than the number on its right. Example: –1 is greater than –2 and less than 0. We can also write it as –1 > –2 and –1 < 0. Recall that “>” means greater than and “<” means less than. On the number line, moving to the right is positive. OML Search

Canons of page construction The canons of page construction are a set of principles in the field of book design used to describe the ways that page proportions, margins and type areas (print spaces) of books are constructed. The notion of canons, or laws of form, of book page construction was popularized by Jan Tschichold in the mid to late twentieth century, based on the work of J. A. van de Graaf, Raúl M. Rosarivo, Hans Kayser, and others.[1] Tschichold wrote, “Though largely forgotten today, methods and rules upon which it is impossible to improve have been developed for centuries. To produce perfect books these rules have to be brought to life and applied.”[2] Kayser's 1946 Ein harmonikaler Teilungskanon[3] had earlier used the term canon in this context. Typographers and book designers apply these principles to this day, with variations related to the availability of standardized paper sizes, and the diverse types of commercially printed books.[4] Van de Graaf canon[edit] Golden canon[edit] See also[edit] [edit]

Tutorials Menu Note: Yo Quiero Math has a new site "Math Para Mi" at " All tutorials and any additional tutorials are being housed in this new site. Please click the link for Math Para Mi. Home Page What are Integers? An introduction to integers-- learning to compare integers. What is the absolute value of an integer. Adding Integers on The Number Line (Discussion) Rules for adding Integers (Discussion) Subtracting Integers (Discussion) The Laws of Addition (Discussion) work Exercises 1. Work Exercises 2. Work Exercises 3 Practice Adding integers on the Number Line. Using rules to Add Integers Work Exercises 4 Using the number line and Rules to Subtract integers or Sign numbers Exercises 5 Practice your understanding of the laws of addition Exercises 6 Home Page