Newton-II
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Program for solving mechanical equations for movements.   Free
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Newton-II is a program for solving mechanical equations of motions numerically. The equations can be parameterized for interactive investigations of the motions. The according solutions are displayed immediately in a diagram.

The differential equations (DEQs) are programmed to calculate the time dependence of the velocitiy v(t) of a point of mass from the given acceleration a. Then the location s(t) is calculated from v(t).

The acceleration a can be entered directly or with any desired mathematical term (i.e. a = F/m from Newton's law). For solving the DEQs several
What's New
Version 2.0:
  • several error corrections
  • no code needed anymore to use all features
Requirements
Intel/PPC, Mac OS X 10.4 or later, Java 5.



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Newton-II User Discussion (Write a Review)
ver. 2.x:
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burypromote

+3
Dr-David commented on 05 Dec 2010
Runge-kutta is a good general purpose integrator, however Newtonian dynamics have special properties. It would be nice to have the option of a simplectic [canonical] integrator which would preserve the underlying canonical structure of the solution space.
[Version 2.0]


burypromote
-2

+206
Mark Everitt commented on 26 Sep 2009
You've got to be kidding. $20 for something that you can solve exactly on paper in minutes? Anybody who could possibly what to solve some equations of motion knows how to do it by hand, or at least how to write their own simple little program to integrate it for them, so what is the need for this? If it was free I would still question the value of it.
[Version 1.9]


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Downloads:1,968
Version Downloads:598
Type:Education : Teaching Tools
License:Free
Date:03 Dec 2010
Platform:PPC 32 / Intel 32 / OS X
Price:Free0.00
Overall (Version 2.x):
Features:
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Newton-II is a program for solving mechanical equations of motions numerically. The equations can be parameterized for interactive investigations of the motions. The according solutions are displayed immediately in a diagram.

The differential equations (DEQs) are programmed to calculate the time dependence of the velocitiy v(t) of a point of mass from the given acceleration a. Then the location s(t) is calculated from v(t).

The acceleration a can be entered directly or with any desired mathematical term (i.e. a = F/m from Newton's law). For solving the DEQs several solution methods up to a very sturdy adaptive Runge-Kutta-Method of 4th order can be used. The output of the results are given graphically in a diagram and as a table for further usage.

Special qualities of Newton-II
  • Realtime calculation while modifying a parameter (perfect to investigate the connections between the parameter and the movement).
  • Compare the calculations with experimental data or predictive functions.
  • Ability to solve complex problems using conditioned variables or table functions.
  • Extensive printing and export capabilities.
  • Self evident program design and very intuitive program handling (i.e. great mouse support in the diagram, input assistances ... ). ? minimal lerning curve
  • Direct accessible examples with explanations.
  • Eminently suitable for lectures, talks and private studies


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