written by Harvey Gould, Jan Tobochnik, Wolfgang Christian, and Anne Cox

The STP Multiplicative Process program simulates the outcome of a random multiplicative process, a product of random numbers. Examples of multiplicative processes include the distributions of incomes, rainfall, and the fragments sizes in rock crushing processes. Consider the latter for which we begin with a rock of size w. We strike the rock with a hammer and generate two fragments whose sizes are pw and (1-p)w.  What is the distribution of the fragments after N blows of the hammer? The default is the random product of two numbers x1 and x2 with probability p = 1/2 multiplied N=4 times.

STP MultiplicativeProcess is part of a suite of Open Source Physics programs that model aspects of Statistical and Thermal Physics (STP). The program is distributed as a ready-to-run (compiled) Java archive. Double clicking the stp_MultiplicativeProcess.jar file will run the program if Java is installed on your computer. Additional programs can be found by searching ComPADRE for Open Source Physics, STP, or Statistical and Thermal Physics.

• Download stp_MultiplicativeProcess.jar - 469kb Java Archive File

Last Modified March 9, 2009

A pdf document that briefly describes the STP Multiplicative Process program. It describes how to use the stp_MultiplicativeProcess.jar file and contains short tutorial exercises for use with the jar file.

• Download stp_MultiplicativeProcess.pdf - 119kb Adobe PDF Document

Published March 9, 2009
Last Modified March 9, 2009

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The materials distributed in this zip file are in support of the STP MultiplicativeProcess program. This distribution contains the program, documentation, and exercises.

• Download stp_MultiplicativeProcess_Distribution.zip - 518kb Compressed File

Published March 9, 2009
Last Modified March 9, 2009

This file has previous versions.