[PDF] Python-for-Computational-Science-and-Engineering.pdf





Previous PDF Next PDF



Introduction to Mathematical Thinking Keith Devlin

1.1 More than arithmetic. 1.2 Mathematical notation. 1.3 Modern college For most scientists engineers



An Introduction to Computer Programming for Engineers and

20 de abr. de 2006 expressed in familiar mathematical notation. Typical uses ... Engineers and scientists use mathematics to build models of practical problems.



DeepABM: Scalable efficient and differentiable agent-based

9 de out. de 2021 Mathematical Notation: A Guide for Engineers and Scientists. Seattle ... pdf. Yang J. T. 1995. An Outline of Scientific Writing: For ...



Notation List for Cambridge International Mathematics Qualifications

Notation List for Cambridge International Mathematics Qualifications (For use from 2020). 2. Mathematical notation. Examinations for CIE syllabuses may use 



Physical Review Style and Notation Guide

8 de mar. de 2012 INSTRUCTIONS FOR COMPOSING MATHEMATICAL MATERIAL. 15. A. Characters available ... Nuclear Science and Engineering. Nukleonik. Nuovo Cimento. Nuovo ...



Introduction to Fortran 90 for Scientists and Engineers

it possible to use symbolic names to represent mathematical quantities and to write mathematical scientific notation



Mathematics for Engineers and Engineers Mathematics

1 de set. de 2015 ... guide. The various provincial building ... models engineering scientists (i.e. academic engineers) create the mathematical models that are used.



Writing mathematical ecology: A guide for authors and readers

12 de ago. de 2021 Mathematical notation: a guide for engineers and scientists. CreateSpace Scotts. Valley



The Scientist and Engineers Guide to Digital Signal Processing

Page 1. The Scientist and Engineer's Guide to. Digital Signal Processing. Second Edition engineering style of detailed and rigorous mathematics. DSP is ...



The Scientist and Engineers Guide to Digital Signal Processing

In this chapter we look at the mathematics of complex numbers



The Scientist and Engineers Guide to Digital Signal Processing

The Scientist and Engineer's Guide to. Digital Signal Processing. Second Edition by. Steven W. Smith. California Technical Publishing. San Diego California 



Physical Review Style and Notation Guide

8 mars 2012 Displayed math is allowed within the caption but the use of short mathematical expressions in broken-down form is preferred. Abbreviations and ...



Writing mathematical ecology: A guide for authors and readers

12 août 2021 for writing science focusing specifically on effective communication of mathematics. Key words: equations; notation; scientific writing; ...



The Scientist and Engineers Guide to Digital Signal Processing

scientists and engineers regard complex techniques as the dividing line The mathematical notation for separating a complex number into its real and.



INTRODUCTION TO PROBABILITY AND STATISTICS FOR

statistics for students in engineering computer science



An Analysis of Mathematical Notations: For Better or For Worse

8 nov. 2015 science and engineering. ... Scheinerman compiled a guide[31] to mathematical notation aimed at engineers and scientists.



Scientist and Engineers Guide to Digital Signal Processing

Today DSP is a basic skill needed by scientists and engineers in many fields. The Second Edition of this book includes two new chapters on Digital ...



The Scientist and Engineers Guide to Digital Signal Processing

The Scientist and Engineer's Guide to. Digital Signal Processing The Histogram Pmf and Pdf 19 ... Notation and Format of the real DFT 146.



Python-for-Computational-Science-and-Engineering.pdf

7 sept. 2015 The Python style guide (http://www.python.org/dev/peps/pep-0008/ ... Some computer science literature uses the following notation to express ...



Mathematical Methods for Physics and Engineering : A

give a systematic account of the 'special functions' of physical science So many of the applications of mathematics to physics and engineering are.

Introduction to

Python for Computational Science and Engineering

(A beginner's guide)Hans Fangohr

Faculty of Engineering and the Environment

University of Southampton

September 7, 2015

2

Contents

1 Introduction9

1.1 Computational Modelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

1.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

1.1.2 Computational Modelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

1.1.3 Programming to support computational modelling . . . . . . . . . . . . . . . .

10

1.2 Why Python for scientic computing? . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

1.2.1 Optimisation strategies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

1.2.2 Get it right rst, then make it fast . . . . . . . . . . . . . . . . . . . . . . . . .

13

1.2.3 Prototyping in Python . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

1.3 Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

1.3.1 Recorded video lectures on Python for beginners . . . . . . . . . . . . . . . . .

13

1.3.2 Python tutor mailing list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

1.4 Python version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

1.5 This document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

1.6 Your feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

2 A powerful calculator 17

2.1 Python prompt and Read-Eval-Print Loop (REPL) . . . . . . . . . . . . . . . . . . . .

17

2.2 Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

2.3 Integer division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

2.3.1 How to avoid integer division . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

2.3.2 Why should I care about this division problem? . . . . . . . . . . . . . . . . . .

19

2.4 Mathematical functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

2.5 Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

2.5.1 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

2.6 Impossible equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

2.6.1 The+=notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

3 Data Types and Data Structures 25

3.1 What type is it? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

3.2 Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

3.2.1 Integers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

3.2.2 Long integers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

3.2.3 Floating Point numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

3.2.4 Complex numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27

3.2.5 Functions applicable to all types of numbers . . . . . . . . . . . . . . . . . . . .

27

3.3 Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27

3.3.1 Sequence type 1: String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28

3.3.2 Sequence type 2: List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29

3.3.3 Sequence type 3: Tuples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31
3

4CONTENTS

3.3.4 Indexing sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32

3.3.5 Slicing sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33

3.3.6 Dictionaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

3.4 Passing arguments to functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37

3.4.1 Call by value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37

3.4.2 Call by reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38

3.4.3 Argument passing in Python . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39

3.4.4 Performance considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40

3.4.5 Inadvertent modication of data . . . . . . . . . . . . . . . . . . . . . . . . . .

41

3.4.6 Copying objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42

3.5 Equality and Identity/Sameness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42

3.5.1 Equality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42

3.5.2 Identity / Sameness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43

3.5.3 Example: Equality and identity . . . . . . . . . . . . . . . . . . . . . . . . . . .

43

4 Introspection45

4.1 dir() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45

4.1.1 Magic names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46

4.2 type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46

4.3 isinstance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47

4.4 help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47

4.5 Docstrings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

49

5 Input and Output 51

5.1 Printing to standard output (normally the screen) . . . . . . . . . . . . . . . . . . . .

51

5.1.1 Simple print (not compatible with Python 3.x) . . . . . . . . . . . . . . . . . .

51

5.1.2 Formatted printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

52

5.1.3 \str" and \str" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

5.1.4 \repr" and \repr" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

5.1.5 Changes from Python 2 to Python 3:print. . . . . . . . . . . . . . . . . . . .54

5.1.6 Changes from Python 2 to Python 3: formatting of strings . . . . . . . . . . .

54

5.2 Reading and writing les . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55

5.2.1 File reading examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

56

6 Control Flow59

6.1 Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

59

6.1.1 Conditionals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

59

6.2 If-then-else . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

61

6.3 For loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

61

6.4 While loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

62

6.5 Relational operators (comparisons) inifandwhilestatements . . . . . . . . . . . . .62

6.6 Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

63

6.6.1 Raising Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

64

6.6.2 Creating our own exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65

6.6.3 LBYL vs EAFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65

7 Functions and modules 67

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

67

7.2 Using functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

67

7.3 Dening functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

68

7.4 Default values and optional parameters . . . . . . . . . . . . . . . . . . . . . . . . . .

70

CONTENTS5

7.5 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

71

7.5.1 Importing modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

71

7.5.2 Creating modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

72

7.5.3 Use ofname. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

7.5.4 Example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

73

7.5.5 Example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

74

8 Functional tools77

8.1 Anonymous functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

77

8.2 Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

78

8.3 Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

78

8.4 List comprehension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

79

8.5 Reduce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

80

8.6 Why not just use for-loops? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

82

8.7 Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

83

9 Common tasks85

9.1 Many ways to compute a series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

85

9.2 Sorting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

88

10 From Matlab to Python 91

10.1 Important commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

10.1.1 The for-loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

10.1.2 The if-then statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

10.1.3 Indexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

10.1.4 Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

92

11 Python shells93

11.1 IDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

93

11.2 Python (command line) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

93

11.3 Interactive Python (IPython) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

93

11.3.1 IPython console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

93

11.3.2 IPython Notebook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

94

11.4 Spyder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

95

11.5 Editors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

95

12 Symbolic computation 97

12.1 SymPy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

97

12.1.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

97

12.1.2 isympy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

98

12.1.3 Numeric types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

99

12.1.4 Dierentiation and Integration . . . . . . . . . . . . . . . . . . . . . . . . . . .

99

12.1.5 Ordinary dierential equations . . . . . . . . . . . . . . . . . . . . . . . . . . .

101

12.1.6 Series expansions and plotting . . . . . . . . . . . . . . . . . . . . . . . . . . .

103

12.1.7 Linear equations and matrix inversion . . . . . . . . . . . . . . . . . . . . . . .

104

12.1.8 Non linear equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

106

12.1.9 Output: L

ATEX interface and pretty-printing . . . . . . . . . . . . . . . . . . . .107

12.1.10Automatic generation of C code . . . . . . . . . . . . . . . . . . . . . . . . . .

108

12.2 Related tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

109

6CONTENTS

13 Numerical Computation 111

13.1 Numbers and numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

quotesdbs_dbs47.pdfusesText_47
[PDF] mathematical programs in c language pdf

[PDF] mathematics

[PDF] mathematics in early childhood education

[PDF] mathematics in early childhood education research

[PDF] mathematimatiques, besoin de vous merci

[PDF] Mathématiqu devoir maison

[PDF] MATHEMATIQUE !

[PDF] Mathématique ! Devoirs maison

[PDF] mathematique !!

[PDF] Mathématique !! help me

[PDF] Mathématique le coin du petit chercheur

[PDF] Mathématique ( échelle)

[PDF] Mathematique ( Les Nombres Relatifs ) !!! A L'aiiide !!

[PDF] mathematique (A LAIde°)

[PDF] mathématique (juste corriger) (chut)