By Murray D.
A quick exposition of a few of the units hired in fixing differential equations, the publication is designed for undergraduate scholars of physics and engineering, and scholars who intend to check larger arithmetic.
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Additional info for Introductory course in diff. equations for students in classical and engineering colleges
A brief description of the terminology that will be used in the remainder of this book is also necessary. The intent of this chapter is to introduce the mathematical concepts that underlie the Monte Carlo method and provide a basis for further development of selected topics. To obtain a broader and more rigorous development of the underlying mathematical concepts than is presented here the interested reader may consult any of a number of standard textbooks and references on statistics and probability.!
The sampling of events uses the following information: • The sample space from which a particular event or sample is to be selected, • The value of the random variables associated with every event in the sample space (this is required so that the Monte Carlo model can deal with real numbers), • The cumulative distribution and/or the pdf for the random variables involved in the problem, and • A method of obtaining a sequence of random numbers. These four elements are used in a Monte Carlo calculation in the following manner: • One or more random numbers are selected.
In order to calculate the statistical uncertainty in estimates of random variables, a few rules regarding the sums and products of variances and standard deviations are needed. 1 Stratified Sampling One effective technique for reducing the variance of a Monte Carlo estimate of a random variable is stratified sampling. With this technique the range over which the independent variable is sampled is divided into strata, and each stratum is sampled separately. 30. We wish to select subranges of the independent variable x to serve as strata for a demonstration of stratified sampling.
Introductory course in diff. equations for students in classical and engineering colleges by Murray D.