# Browse Course Communities

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Demonstration of radioactive decay of C14 and its relationship to time. This resource requires download of the Wolfram Demonstrations Project (120MB).
The site contains many examples of spring-mass system using Mathematica. Examples must be downloaded to be used.
This maplet combines visualization, mixing word problems, and then fill in the blank values/functions for the maplet.

This Java applet provides an approximate graphical solution for a first-order IVP entered by the user in the form $$dy/dx$$.

This webpage displays fully-worked examples showing the solution of an exact first-order initial value problem.
This webpage displays fully-worked examples showing the solution of an initial value problem for a first-order linear ODE.
This applet provides an interface for displaying the slope field associated with a first-order DE $$x'=f(t,x)$$. There is a nice collection of built-in problems, or you can enter your own.
This is the homepage for a collection of graphers written in Java.
This is the homepage for the java versions of dfield and pplane. These applets contain most of the features of the original MATLAB versions.
Hands-on activity. Plotting points, writing linear functions algebraically, relating slope and $$y$$-intercept to context. Compares value of coins in different piles.