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发表于2024-11-09
Linear Algebra and Differential Equations pdf epub mobi txt 電子書 下載 2024
The mathematical solution of a physical problem usually involves the
following steps:
1 The construction Of a mathematical model. At this step we must care-
fully define the variables involved and select a consistent system of
units. Tile actual mathematical equations describing the physical
problem are usually mathematical realizations of physical laws or
imposed constraints. Frequently, some simplifying assumptions are
made at this stage in order to make the model simple enough to solve.
Solution of the mathematical equations obtained in step 1. Ideally, we
would like to be able to find exact solutions of the equations, but in
many cases only approximate solutions are available. In this case,
theoretical support for the existence and uniqueness of the solution
would be reassuring.
Interpretation of the solution of the mathematical problem in terms of
the original physical situation. It is important that the mathematical
results be consistent with physical intuition and laboratory evidence.
If they are not, then the construction of the model must be critically
reexamined.
This book will be concerned mostly with step 2. We will begin by con-
sidering briefly a few simple mathematical models of physical situations which will
motivate the topics to be covered in this book. Solutions to these models will be studied
later.
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Linear Algebra and Differential Equations pdf epub mobi txt 電子書 下載 2024