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Factoring Shortcuts
9/1/2010 - File Under: Lesson Enhancement
Expressions such as x^4-3x^3-40x^2=0 are now accepted in the search engine box shortcut list.

Square Root with outside Constant Multiplier
9/1/2010 - File Under: Lesson Enhancement
An enhancement has been added to accept outside constant multipliers for square root problems such as 25 sqrt(40)

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

Normal Distribution Z-score shortcuts
8/17/2010 - File Under: Other
Now Z-score statements can be entered directly into the search engine, such as P(Z<1.5) or P(Z>-0.25)
No more need to look up a huge table in your book anymore.

Confidence Interval for the Difference of Means
8/15/2010 - File Under: Lesson Enhancement
This calculator determines the confidence interval (90 - 99)% for a small or large distribution for the difference of means.

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.

Chinese Remainder Theorem now has shortcuts
8/7/2010 - File Under: Lesson Enhancement
Our Chinese remainder theorem calculator now has shorcut commands. Simply enter your set of modulo equations separating each modulus statement by a comma like below:
x = 1 mod 2,x = 2 mod 3,x = 3 mod 5,x = 4 mod 11

Vertex Form
8/4/2010 - File Under: Lesson Enhancement
The vertex button has now been enhanced to display the vertex form of the quadratic:
a(x - h)2 + k

axc Expressions are now shortcut compatible
8/3/2010 - File Under: Other
Expressions in the form axc can now be entered directly into the search engine, which will prompt a menu of choices.


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