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Hacker's Delight
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In Hacker’s Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren’s hacks are eminently practical, but they’re also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code A new chapter on error correcting codes (ECC), including routines for the Hamming code More coverage of integer division by constants, including methods using only shifts and adds Computing remainders without computing a quotient More coverage of population count and counting leading zeros Array population count New algorithms for compress and expand An LRU algorithm Floating-point to/from integer conversions Approximate floating-point reciprocal square root routine A gallery of graphs of discrete functions Now with exercises and answers Product Description In Hacker’s Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren’s hacks are eminently practical, but they’re also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code A new chapter on error correcting codes (ECC), including routines for the Hamming code More coverage of integer division by constants, including methods using only shifts and adds Computing remainders without computing a quotient More coverage of population count and counting leading zeros Array population count New algorithms for compress and expand An LRU algorithm Floating-point to/from integer conversions Approximate floating-point reciprocal square root routine A gallery of graphs of discrete functions Now with exercises and answers Foreword xiii Preface xv Chapter 1: Introduction 1 1.1 Notation 1 1.2 Instruction Set and Execution Time Model 5 Chapter 2: Basics 11 2.1 Manipulating Rightmost Bits 11 2.2 Addition Combined with Logical Operations 16 2.3 Inequalities among Logical and Arithmetic Expressions 17 2.4 Absolute Value Function 18 2.5 Average of Two Integers 19 2.6 Sign Extension 19 2.7 Shift Right Signed from Unsigned 20 2.8 Sign Function 20 2.9 Three-Valued Compare Function 21 2.10 Transfer of Sign Function 22 2.11 Decoding a “Zero Means 2**n” Field 22 2.12 Comparison Predicates 23 2.13 Overflow Detection 28 2.14 Condition Code Result of Add, Subtract, and Multiply 36 2.15 Rotate Shifts 37 2.16 Double-Length Add/Subtract 38 2.17 Double-Length Shifts 39 2.18 Multibyte Add, Subtract, Absolute Value 40 2.19 Doz, Max, Min 41 2.20 Exchanging Registers 45 2.21 Alternating among Two or More Values 48 2.22 A Boolean Decomposition Formula 51 2.23 Implementing Instructions for all 16 Binary Boolean Operations 53 Chapter 3: Power-of-2 Boundaries 59 3.1 Rounding Up/Down to a Multiple of a Known Power of 2 59 3.2 Rounding Up/Down to the Next Power of 2 60 3.3 Detecting a Power-of-2 Boundary Crossing 63 Chapter 4: Arithmetic Bounds 67 4.1 Checking Bounds of Integers 67 4.2 Propagating Bounds through Add’s and Subtract’s 70 4.3 Propagating Bounds through Logical Operations 73 Chapter 5: Counting Bits 81 5.1 Counting 1-Bits 81 5.2 Parity 96 5.3 Counting Leading 0’s 99 5.4 Counting Trailing 0’s 107 Chapter 6: Searching Words 117 6.1 Find First 0-Byte 117 6.2 Find First String of 1-Bits of a Given Length 123 6.3 Find Longest String of 1-Bits 125 6.4 Find Shortest String of 1-Bits 126 Chapter 7: Rearranging Bits And Bytes 129 7.1 Reversing Bits and Bytes 129 7.2 Shuffling Bits 139 7.3 Transposing a Bit Matrix 141 7.4 Compress, or Generalized Extract 150 7.5 Expand, or Generalized Insert 156 7.6 Hardware Algorithms for Compress and Expand 157 7.7 General Permutations, Sheep and Goats Operation 161 7.8 Rearrangements and Index Transformations 165 7.9 An LRU Algorithm 166 Chapter 8: Multiplication 171 8.1 Multiword Multiplication 171 8.2 High-Order Half of 64-Bit Product 173 8.3 High-Order Product Signed from/to Unsigned 174 8.4 Multiplication by Constants 175 Chapter 9: Integer Division 181 9.1 Preliminaries 181 9.2 Multiword Division 184 9.3 Unsigned Short Division from Signed Division 189 9.4 Unsigned Long Division 192 9.5 Doubleword Division from Long Division 197 Chapter 10: Integer Division By Constants 205 10.1 Signed Division by a Known Power of 2 205 10.2 Signed Remainder from Division by a Known Power of 2 206 10.3 Signed Division and Remainder by Non-Powers of 2 207 10.4 Signed Division by Divisors ≥ 2 210 10.5 Signed Division by Divisors ≤ —2 218 10.6 Incorporation into a Compiler 220 10.7 Miscellaneous Topics 223 10.8 Unsigned Division 227 10.9 Unsigned Division by Divisors ≥ 1 230 10.10 Incorporation into a Compiler (Unsigned) 232 10.11 Miscellaneous Topics (Unsigned) 234 10.12 Applicability to Modulus and Floor Division 237 10.13 Similar Methods 237 10.14 Sample Magic Numbers 238 10.15 Simple Code in Python 240 10.16 Exact Division by Constants 240 10.17 Test for Zero Remainder after Division by a Constant 248 10.18 Methods Not Using Multiply High 251 10.19 Remainder by Summing Digits 262 10.20 Remainder by Multiplication and Shifting Right 268 10.21 Converting to Exact Division 274 10.22 A Timing Test 276 10.23 A Circuit for Dividing by 3 276 Chapter 11: Some Elementary Functions 279 11.1 Integer Square Root 279 11.2 Integer Cube Root 287 11.3 Integer Exponentiation 288 11.4 Integer Logarithm 291 Chapter 12: Unusual Bases For Number Systems 299 12.1 Base —2 299 12.2 Base —1 + i 306 12.3 Other Bases 308 12.4 What Is the Most Efficient Base? 309 Chapter 13: Gray Code 311 13.1 Gray Code 311 13.2 Incrementing a Gray-Coded Integer 313 13.3 Negabinary Gray Code 315 13.4 Brief History and Applications 315 Chapter 14: Cyclic Redundancy Check 319 14.1 Introduction 319 14.2 Theory 320 14.3 Practice 323 Chapter 15: Error-Correcting Codes 331 15.1 Introduction 331 15.2 The Hamming Code 332 15.3 Software for SEC-DED on 32 Information Bits 337 15.4 Error Correction Considered More Generally 342 Chapter 16: Hilbert's Curve 355 16.1 A Recursive Algorithm for Generating the Hilbert Curve 356 16.2 Coordinates from Distance along the Hilbert Curve 358 16.3 Distance from Coordinates on the Hilbert Curve 366 16.4 Incrementing the Coordinates on the Hilbert Curve 368 16.5 Non-Recursive Generating Algorithms 371 16.6 Other Space-Filling Curves 371 16.7 Applications 372 Chapter 17: Floating-Point 375 17.1 IEEE Format 375 17.2 Floating-Point To/From Integer Conversions 377 17.3 Comparing Floating-Point Numbers Using Integer Operations 381 17.4 An Approximate Reciprocal Square Root Routine 383 17.5 The Distribution of Leading Digits 385 17.6 Table of Miscellaneous Values 387 Chapter 18: Formulas For Primes 391 18.1 Introduction 391 18.2 Willans’s Formulas 393 18.3 Wormell’s Formula 397 18.4 Formulas for Other Difficult Functions 398 Answers To Exercises: 405 Appendix A: Arithmetic Tables For A 4-Bit Machine 453 Appendix B: Newton's Method 457 Appendix C: A Gallery Of Graphs Of Discrete Functions 459 C.1 Plots of Logical Operations on Integers 459 C.2 Plots of Addition, Subtraction, and Multiplication 461 C.3 Plots of Functions Involving Division 463 C.4 Plots of the Compress, SAG, and Rotate Left Functions 464 C.5 2D Plots of Some Unary Functions 466 Bibliography 471 Index 481In Hacker's Delight, Second Edition , Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code A new chapter on error correcting codes (ECC), including routines for the Hamming code More coverage of integer division by constants, including methods using only shifts and adds Computing remainders without computing a quotient More coverage of population count and counting leading zeros Array population count New algorithms for compress and expand An LRU algorithm Floating-point to/from integer conversions Approximate floating-point reciprocal square root routine A gallery of graphs of discrete functions Now with exercises and answers

Anbieter: buecher
Stand: 09.04.2020
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Building Type Basics for Healthcare Facilities
157,00 CHF *
ggf. zzgl. Versand

Essential information for the design of healthcare facilities Building Type Basics for Healthcare Facilities, Second Edition is your one-stop reference for the essential information you need to confidently begin the design process and successfully complete a healthcare project, large or small, on time and within budget. Leading architects from across the United States share their firsthand knowledge in order to guide you through all aspects of healthcare facility design, with an emphasis on what you need to do to get started quickly. This edition is revised with multiple new healthcare project examples completed this century, more information on engineering requirements, and background on evolving sustainability and technology issues. It begins with an assessment of the healthcare industry's current and future needs, focusing on how those needs affect architecture. Next you get critical information and guidelines that enable you to create successful designs for inpatient, outpatient, and long-term care facilities. Coverage includes clinics, emergency departments, ambulatory care units, specialty centers, as well as facilities designed for adaptive reuse or the assimilation of future technologies. This quick reference: * Addresses twenty key questions that arise when launching a healthcare facility design project * Offers insight from leaders in the industry based on their own design experience * Provides hundreds of project photographs, diagrams, floor plans, sections, and details Not only does this book offer current, authoritative information, its comprehensive coverage and logical organization also save you countless hours of research. Building Type Basics books provide architects with the essentials needed to jump-start specialized facilities design. Each volume features leading experts in the field who address the issues that shape the early phases of a project in a convenient, easy-to-use format.

Anbieter: Orell Fuessli CH
Stand: 09.04.2020
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Oliver Twist - The Original Classic Edition
29,90 CHF *
zzgl. 3,50 CHF Versand

Set in Victorian London, this is a tale of a spirited young innocents unwilling but inevitable recruitment into a scabrous gang of thieves. Masterminded by the loathsome Fagin, the underworld crew features some of Dickens most memorable characters, including the vicious Bill Sikes, gentle Nancy, and the juvenile pickpocket known as the Artful Dodger. This is a high quality book of the original classic edition. This is a freshly published edition of this culturally important work, which is now, at last, again available to you. Enjoy this classic work. These few paragraphs distill the contents and give you a quick look inside: Among other public buildings in a certain town, which for many reasons it will be prudent to refrain from mentioning, and to which I will assign no fictitious name, there is one anciently common to most towns, great or small: to wit, a workhouse; and in this workhouse was born; on a day and date which I need not trouble myself to repeat, inasmuch as it can be of no possible consequence to the reader, in this stage of the business at all events; the item of mortality whose name is prefixed to the head of this chapter. For a long time after it was ushered into this world of sorrow and trouble, by the parish surgeon, it remained a matter of considerable doubt whether the child would survive to bear any name at all; in which case it is somewhat more than probable that these memoirs would never have appeared; or, if they had, that being comprised within a couple of pages, they would have possessed the inestimable merit of being the most concise and faithful specimen of biography, extant in the literature of any age or country. Upon this, the parish authorities magnanimously and humanely resolved, that Oliver should be farmed, or, in other words, that he should be dispatched to a branch-workhouse some three miles off, where twenty or thirty other juvenile offenders against the poor-laws, rolled about the floor all day, without the inconvenience of too much food or too much clothing, under the parental superintendence of an elderly female, who received the culprits at and for the consideration of sevenpence-halfpenny per small head per week. Unfortunately for, the experimental philosophy of the female to whose protecting care Oliver Twist was delivered over, a similar result usually attended the operation of her system; for at the very moment when the child had contrived to exist upon the smallest possible portion of the weakest possible food, it did perversely happen in eight and a half cases out of ten, either that it sickened from want and cold, or fell into the fire from neglect, or got half-smothered by accident; in any one of which cases, the miserable little being was usually summoned into another world, and there gathered to the fathers it had never known in this. Oliver Twist and his companions suffered the tortures of slow starvation for three months: at last they got so voracious and wild with hunger, that one boy, who was tall for his age, and hadnt been used to that sort of thing (for his father had kept a small cook-shop), hinted darkly to his companions, that unless he had another basin of gruel per diem, he was afraid he might some night happen to eat the boy who slept next him, who happened to be a weakly youth of tender age.

Anbieter: Orell Fuessli CH
Stand: 09.04.2020
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Oliver Twist - The Original Classic Edition
13,99 € *
zzgl. 3,00 € Versand

Set in Victorian London, this is a tale of a spirited young innocents unwilling but inevitable recruitment into a scabrous gang of thieves. Masterminded by the loathsome Fagin, the underworld crew features some of Dickens most memorable characters, including the vicious Bill Sikes, gentle Nancy, and the juvenile pickpocket known as the Artful Dodger. This is a high quality book of the original classic edition. This is a freshly published edition of this culturally important work, which is now, at last, again available to you. Enjoy this classic work. These few paragraphs distill the contents and give you a quick look inside: Among other public buildings in a certain town, which for many reasons it will be prudent to refrain from mentioning, and to which I will assign no fictitious name, there is one anciently common to most towns, great or small: to wit, a workhouse; and in this workhouse was born; on a day and date which I need not trouble myself to repeat, inasmuch as it can be of no possible consequence to the reader, in this stage of the business at all events; the item of mortality whose name is prefixed to the head of this chapter. For a long time after it was ushered into this world of sorrow and trouble, by the parish surgeon, it remained a matter of considerable doubt whether the child would survive to bear any name at all; in which case it is somewhat more than probable that these memoirs would never have appeared; or, if they had, that being comprised within a couple of pages, they would have possessed the inestimable merit of being the most concise and faithful specimen of biography, extant in the literature of any age or country. Upon this, the parish authorities magnanimously and humanely resolved, that Oliver should be farmed, or, in other words, that he should be dispatched to a branch-workhouse some three miles off, where twenty or thirty other juvenile offenders against the poor-laws, rolled about the floor all day, without the inconvenience of too much food or too much clothing, under the parental superintendence of an elderly female, who received the culprits at and for the consideration of sevenpence-halfpenny per small head per week. Unfortunately for, the experimental philosophy of the female to whose protecting care Oliver Twist was delivered over, a similar result usually attended the operation of her system; for at the very moment when the child had contrived to exist upon the smallest possible portion of the weakest possible food, it did perversely happen in eight and a half cases out of ten, either that it sickened from want and cold, or fell into the fire from neglect, or got half-smothered by accident; in any one of which cases, the miserable little being was usually summoned into another world, and there gathered to the fathers it had never known in this. Oliver Twist and his companions suffered the tortures of slow starvation for three months: at last they got so voracious and wild with hunger, that one boy, who was tall for his age, and hadnt been used to that sort of thing (for his father had kept a small cook-shop), hinted darkly to his companions, that unless he had another basin of gruel per diem, he was afraid he might some night happen to eat the boy who slept next him, who happened to be a weakly youth of tender age.

Anbieter: Thalia AT
Stand: 09.04.2020
Zum Angebot
Building Type Basics for Healthcare Facilities
109,99 € *
ggf. zzgl. Versand

Essential information for the design of healthcare facilities Building Type Basics for Healthcare Facilities, Second Edition is your one-stop reference for the essential information you need to confidently begin the design process and successfully complete a healthcare project, large or small, on time and within budget. Leading architects from across the United States share their firsthand knowledge in order to guide you through all aspects of healthcare facility design, with an emphasis on what you need to do to get started quickly. This edition is revised with multiple new healthcare project examples completed this century, more information on engineering requirements, and background on evolving sustainability and technology issues. It begins with an assessment of the healthcare industry's current and future needs, focusing on how those needs affect architecture. Next you get critical information and guidelines that enable you to create successful designs for inpatient, outpatient, and long-term care facilities. Coverage includes clinics, emergency departments, ambulatory care units, specialty centers, as well as facilities designed for adaptive reuse or the assimilation of future technologies. This quick reference: * Addresses twenty key questions that arise when launching a healthcare facility design project * Offers insight from leaders in the industry based on their own design experience * Provides hundreds of project photographs, diagrams, floor plans, sections, and details Not only does this book offer current, authoritative information, its comprehensive coverage and logical organization also save you countless hours of research. Building Type Basics books provide architects with the essentials needed to jump-start specialized facilities design. Each volume features leading experts in the field who address the issues that shape the early phases of a project in a convenient, easy-to-use format.

Anbieter: Thalia AT
Stand: 09.04.2020
Zum Angebot
Oliver Twist - The Original Classic Edition
29,90 CHF *
zzgl. 3,50 CHF Versand

Set in Victorian London, this is a tale of a spirited young innocents unwilling but inevitable recruitment into a scabrous gang of thieves. Masterminded by the loathsome Fagin, the underworld crew features some of Dickens most memorable characters, including the vicious Bill Sikes, gentle Nancy, and the juvenile pickpocket known as the Artful Dodger. This is a high quality book of the original classic edition. This is a freshly published edition of this culturally important work, which is now, at last, again available to you. Enjoy this classic work. These few paragraphs distill the contents and give you a quick look inside: Among other public buildings in a certain town, which for many reasons it will be prudent to refrain from mentioning, and to which I will assign no fictitious name, there is one anciently common to most towns, great or small: to wit, a workhouse; and in this workhouse was born; on a day and date which I need not trouble myself to repeat, inasmuch as it can be of no possible consequence to the reader, in this stage of the business at all events; the item of mortality whose name is prefixed to the head of this chapter. For a long time after it was ushered into this world of sorrow and trouble, by the parish surgeon, it remained a matter of considerable doubt whether the child would survive to bear any name at all; in which case it is somewhat more than probable that these memoirs would never have appeared; or, if they had, that being comprised within a couple of pages, they would have possessed the inestimable merit of being the most concise and faithful specimen of biography, extant in the literature of any age or country. Upon this, the parish authorities magnanimously and humanely resolved, that Oliver should be farmed, or, in other words, that he should be dispatched to a branch-workhouse some three miles off, where twenty or thirty other juvenile offenders against the poor-laws, rolled about the floor all day, without the inconvenience of too much food or too much clothing, under the parental superintendence of an elderly female, who received the culprits at and for the consideration of sevenpence-halfpenny per small head per week. Unfortunately for, the experimental philosophy of the female to whose protecting care Oliver Twist was delivered over, a similar result usually attended the operation of her system; for at the very moment when the child had contrived to exist upon the smallest possible portion of the weakest possible food, it did perversely happen in eight and a half cases out of ten, either that it sickened from want and cold, or fell into the fire from neglect, or got half-smothered by accident; in any one of which cases, the miserable little being was usually summoned into another world, and there gathered to the fathers it had never known in this. Oliver Twist and his companions suffered the tortures of slow starvation for three months: at last they got so voracious and wild with hunger, that one boy, who was tall for his age, and hadnt been used to that sort of thing (for his father had kept a small cook-shop), hinted darkly to his companions, that unless he had another basin of gruel per diem, he was afraid he might some night happen to eat the boy who slept next him, who happened to be a weakly youth of tender age.

Anbieter: Orell Fuessli CH
Stand: 09.04.2020
Zum Angebot