Math Celebrity Updates and News

Math Celebrity New Lesson Updates

Results: 1 - 10 of 53

Interval Notation
8/21/2010 - File Under: New Lesson
This calculator translates the following inequality statements to interval notation:
* x < 5
* y <= 5
* z > 5
* a >= 5
* b < 5 or b > 20
* 0 <= c < 5

Shortcut Commands and a Practice Problem Generator are included

Confidence Intervals for p^
8/14/2010 - File Under: New Lesson
Given a large distribution with a sample size n and a success criteria of x, this calculates the 90-99 percent confidence interval for p

Covariance and Correlation Coefficient
8/8/2010 - File Under: New Lesson
Given a number set X and number set Y, this will calculate the covariance denoted as Cov(X,Y) as well as the correlation coefficient r.

Addition of 3 or more numbers (Cash Register Addition)
8/1/2010 - File Under: New Lesson
A new calculator is now available which adds up 3 or more numbers and shows the carrying of columns and color codes for addition
Shortcut commands, quiz generator, and practice problem generator are included.

Round Pool Volume Calculator
7/30/2010 - File Under: New Lesson
Thanks to John Cronin for the lesson suggestion:
Given a round pool with a diameter, length, and depth measurement, this calculates the volume of the pool in gallons when the water is to the top.

Frequency Distribution Calculator
7/26/2010 - File Under: New Lesson
Given a set of lower limits, upper limits, and count per limit range, this calculator will develop the frequency distribution table.

Ratios
7/24/2010 - File Under: New Lesson
Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.

Sum to Product and Sum formulas
7/20/2010 - File Under: New Lesson
Two new lessons are available which show these trig formulas in action

Number Properties
7/13/2010 - File Under: New Lesson
This calculator determines if an integer you entered has any of the following properties:
* Even or Odd
* Evil or Odious
* Perfect, Abundant, or Deficient
* Triangular
* Prime or Composite
* Automorphic (Curious)
* Undulating
* Square
* Cube
* Palindrome
* Repunit
* Apocalyptic Power
* Pentagonal
* Tetrahedral (Pyramidal)
* Narcissistic (Plus Perfect)
* Catalan

Coupon Comparison
7/10/2010 - File Under: New Lesson
Thanks to Andrea Dopico for the lesson suggestion:
Given a cost of goods, a dollar off coupon, and a percentage off coupon, this calculator will compare the two deals and determine which one is of more value. If the dollar coupon wins, the calculator will project the break even price where the percentage coupon would surpass the dollar coupon

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