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Technology 
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$? 
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Adding Apples, Oranges, Pears ...

solving systems of linear equations (PreCalculus)+ 
JavaScript 
Tool 

[0]

Use to calculate the value of an apple, an orange, a pear, and a lemon from four purchases. About mental arithmetic, with a prealgebra tool introducing the Gaussian elimination.
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Adding Apples, Oranges, and Pe...

solving systems of linear equations (PreCalculus)+ 
JavaScript 
Tool 

[0]

To calculate the value of an apple, an orange, and a pear from three purchases.
About mental arithmetic, with a prealgebra tool introducing the Gaussian elimination.
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Advanced Equation Plotter

graphs and parameters of these functions (PreCalculus) 
JavaScript 
Tool 

[0]

The user can enter a series of equations and set specific parameters and the solver will plot a graph of the equations.
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Advanced Expand

Binomial Expansion (PreCalculus) 
JavaScript 
Tool 

[0]

The user can enter an expression and set the options and the calculator will expand the expression according to the options specified.
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Advanced Partial Fractions

Partial Fractions (PreCalculus) 
JavaScript 
Tool 

[0]

The user can enter a rational expression into the solver and the solver will break it into partial fractions.
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Basic Equation Plotter

graphs and parameters of these functions (PreCalculus) 
JavaScript 
Tool 

[1]

The user can enter an equation into the solver and the solver will plot the equation over the specified interval.
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Basic Expand

Binomial Expansion (PreCalculus) 
JavaScript 
Tool 

[1]

The user can enter an expression into the calculator and have the applet expand the expression into a polynomial.
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Basic Matrix Arithmetic

operations with matrices (PreCalculus) 
JavaScript 
Tool 

[0]

The user can enter one or two matrices and then tell the solver what operation(s) to perform on the matrices.
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Basic Matrix Determinant

determinants (PreCalculus) 
JavaScript 
Tool 

[0]

The user enters a matrix and the solver will find the determinant of the given matrix.
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Basic Matrix Inverse

matrix inverses (PreCalculus) 
JavaScript 
Tool 

[0]

The user enters a matrix and the solver will solve for the inverse of that matrix.
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Basic Partial Fractions

Partial Fractions (PreCalculus) 
JavaScript 
Tool 

[1]

The user can enter a rational expression into the calculator and the calculator will break it into partial fractions.
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Dynamic Paper

General (PreCalculus) 
JavaScript 
Tool 

[0]

Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? Or a set of pattern blocks where all shapes have oneinch sides? You can create all those thin...
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Enzyme Reaction Rates

graphs and parameters of these functions (PreCalculus)+ 
JavaScript 
Tool 

[0]

Students use this simulation to explore a chemical reactiontemperature, pH, enzyme concentration, and substrate concentrationin order to determine the fastest possible reaction rate. Questions are...
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FooPlot  Online graphing calc...

graphs and parameters of these functions (PreCalculus) 
JavaScript 
Tool 

[2]

This tool lets you plot functions, polar plots, and 3D with just a suitable web browser (within the IE, FireFox, or Opera web browsers), and find the roots and intersections of graphs. In addition, yo...
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Function Graphs Drawing Progra...

General (PreCalculus) 
JavaScript 
Tool 

[1]

Online program to draw function graphs, their dreivative or their integral.
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Linear Algebra Calculator

determinants (PreCalculus)+ 
JavaScript 
Tool 

[1]

This calculator lets students enter up to three different matrices and does different calculations with the matrices entered.
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Linear Algebra III

solving systems of linear equations (PreCalculus)+ 
JavaScript 
Tool 

[1]

This applet solves a system of three equations with three unknowns and goes on to explain the mathematics behind solving systems of equations.
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Now/Next Recurrence Table Gene...

Sequences and Series (PreCalculus) 
JavaScript 
Tool 

[2]

This JavaScript illustrates one method of dynamically generating a table of values for a recurrence equation.
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Online Function Grapher

General (PreCalculus) 
JavaScript 
Tool 

[0]

Online function grapher is a 2D interactive function plotter. The online function grapher draws trigonometric function, log and ln, square root and other special functions like min, max, absolute valu...
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Plomplex (complex function plo...

Functions (PreCalculus)+ 
JavaScript 
Tool 

[0]

Plomplex is a complex function plotter using domain coloring. You can compose a function with a complex variable z, and generate a domain coloring plot of it. You can choose the plot range as well as ...
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Projectile Motion Model

increasing, decreasing and constant rates of change (PreCalculus) 
JavaScript 
Tool 

[0]

Figure angles and velocities of thrown objects in this simulation. Questions walk students through their explorations of throwing a football or reconstructing a car accident.
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Sequences  Convergent or Dive...

Sequences and Series (PreCalculus) 
JavaScript 
Tool 

[0]

Students must decide whether the given sequences converge or diverge.
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Sextic Equation Calculator

General (PreCalculus) 
JavaScript 
Tool 

[1]

This calculator solves sextic equations in the form of AX^6 + BX^5 + CX^4 + DX^3 + EX^2 + FX + G = 0. It uses the NewtonRaphson method to approximate 2 out of the 6 solutions. Then, it divides the 2 ...
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Strategies for the Prevention ...

exponential (PreCalculus)+ 
JavaScript 
Tool 

[0]

Simulation of the spread of influenza in a day care, an office building, and a city. Variable parameters include population size, vaccination, quarantine, rates of survival, and more.
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eCalc Online Scientific Calcul...

General (PreCalculus) 
JavaScript 
Tool 

[0]

eCalc is a free interactive online calculator that is suitable for university students and professionals. It contains many advanced features, including support for complex numbers, unit conversion...
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