12.9 Pattern Printing using Nested Loops

Duration: 7 min

This video lesson is available to enrolled students.

Return to /learn/DSSSB-TGT-COMPUTER-SCIENCE-COMPLETE-COURSE/python-language/control-flow-looping/jump-nested-loops/asset-129-pattern-printing-using-nested-loops after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Section A: General Awareness: Polity, Physics, Biology, Chemistry, Static General Knowledge, History, Geography, Indian Economy, GK- Current Affairs, Evolution of Indian Banking (Banking & Financial Awareness), Environment
  3. Section A: General Intelligence & Reasoning ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Blood Relations, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Directions (Direction Test), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Selection Decision Table (Decision Making), Logical Sequence Of Words, Crypt Arithmetic, Venn Diagram, Data Arrangement, Inequality, Analogy, Ranking, Order and Sequence, TCS NQT Advanced Reasoning Ability
  4. Section A: Arithmetical & Numerical Ability: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Mixture and Alligation, Permutation and Combination, Logarithm, Number System, HCF LCM, Sequence and Series (Series), Speed Time and Distance, Percentage, Average, Profit and Loss, Simple Interest and Compound Interest, Time and Work, Pipe and Cistern, Mensuration and Geometry, Powers and Exponents (Surds and Indices), Algebra, Probability, Mental Ability, Age Problems, Partnership, Statistics, Arithmetic, Speed Mathematics and Basic Mathematics, Miscellaneous
  5. Section A: English Language & Comprehension: Vocabulary, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Tenses, Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Articles, Sentence Construction, Preposition, Direct and Indirect Speech, Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Modals, Active Passive Voice (Voice), Sentence Correction (Error Correction), Adverb, Conjunction, Cloze Test (Cloze Passage)
  6. Section A: Hindi Language & Comprehension: भाषा, लिपि, ध्वनि, वर्ण, अक्षर, स्वर, व्यंजन, मात्रा और संयुक्ताक्षर, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, विशेषण और क्रिया, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, संधि, समास, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, अपठित गद्यांश और अपठित पद्यांश, Multi-Topic Content (Cross-Concept Material), वर्णमाला
  7. Section B: Programming, Data Structures, OOP & Java: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Java, OOPS with C++, Language Design, Intro to Compilers, Visual Basics, Syntax Analysis: Bottom-Up, Object Oriented Technology
  8. Section B: Computer Networks, TCP/IP & Network Security: Introduction to CN, Data Communication, DLL: Flow Control, DLL: Access Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Access Technologies, Network Security, Society, Law & Ethics, Mobile Computing, Net Layer:Routing Protocol, Cyber Safety and Security
  9. Section B: Teaching Methodology: Child Development, Concept of Pedagogy, Theories, Inclusive Education, Experiential Pedagogy, Assessment & Evaluation, Curriculum Framework & Reforms, National Education Policy (NEP) 2020, Psychology, Teaching-Learning Process, Personality Development, Teaching Methods & Strategies, Learning and Motivation, Learners & Learning Process, Factors Affecting Teaching, Methods of Teaching, Nature, Objectives & Characteristics of Teaching, Teaching-Learning Aids & ICT Integration, Classroom Management & Communication, Evaluation, Assessment & Measurement, Curriculum & School Environment, Inclusive Education & Special Needs, Professional Development & Ethics
  10. Section B: Digital Electronics / Boolean Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Analog-Digital Conversion
  11. Section B: Operating Systems & Linux: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, File Management, Disc Scheduling, Unix OS, Linux OS, Distributed Systems, Windows OS
  12. Section B: Data Base Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, File Organization & Indexing, Transaction Management, Concurrency Control, Database Security & Authorization, Database Recovery, Data Warehousing & Mining
  13. Section B: Internet & Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, HTML Basics, CSS, Emerging Technologies, JavaScript-Basics, .Net Programming, Electronic Data Interchange and E-Commerce, XML
  14. Section B: Computer Fundamentals, IT Basics & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer, Terms & Abbreviations, MS Office Applications, Instr Formats & Modes, Floating Point Rep
  15. Section B: Python Language: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  16. Section B: Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, extras, Fundamentals of Systems and Information Systems
  17. Section B: Design & Analysis of Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Advanced Algorithms
  18. Section B: Mathematics: Linear Algebra, Calculus, Trigonometry, Vectors, Set Theory, Functions, Relations, Propositional and Predicate Logic, Research Process Steps, Graph Theory
  19. Section B: Computer Graphics, Multimedia & Mobile Computing: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing, Multimedia
  20. Section B: Emerging Trends: Emerging Tech Trends, Knowledge Representation, Natural Language Processing
  21. DSSSB Previous Year Paper:
  22. Business Studies and Management: Business Communication, Business Organization and Management, Financial Accounting, Business Economics, Management Information System (MIS), Knowledge Management & New Economy
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This video is a programming tutorial that demonstrates how to use nested loops in Python to print various patterns. The instructor begins by introducing the concept of pattern printing using nested loops, with the first example being a square pattern. The code for the square pattern is shown as a nested loop structure: a for loop for the rows (i) and a nested for loop for the columns (j), where each iteration prints an asterisk. The instructor then explains the logic by writing out the values of the loop variables i and j on the side, showing how the inner loop runs completely for each iteration of the outer loop. The second example is a right-angled triangle pattern, where the number of asterisks printed in each row increases. The code uses a similar nested loop structure, but the range of the inner loop is determined by the current value of the outer loop variable i. The instructor again uses the board to illustrate the iteration process. The third example is a number pattern, where the inner loop prints the value of j, which ranges from 1 to i+1, creating a sequence of numbers in each row. The final example is a multiplication table, where the inner loop prints the product of i and j. The video concludes with a 'Thanks' slide.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video starts with a title slide that reads 'Pattern Printing Using Nested Loops'. The instructor, a man in a black polo shirt, stands in front of a digital screen. He introduces the topic of pattern printing using nested loops in Python. He then transitions to the first example, a 'Square Pattern'. The code for this pattern is displayed on the screen: a for loop for i in range(4), a nested for loop for j in range(4), and a print statement that outputs an asterisk with 'end=" "' to prevent a new line. The instructor begins to explain the logic by writing the loop variables i and j on the side of the screen, starting with i=1 and j=1, 2, 3, 4.

  2. 2:00 – 5:00 02:00-05:00

    The instructor continues to explain the square pattern. He demonstrates the iteration process by writing the values of i and j on the screen. For i=1, the inner loop runs for j=1, 2, 3, 4, printing four asterisks. He then moves to i=2, and the process repeats, showing that the inner loop runs four times for each of the four iterations of the outer loop. He uses a large yellow circle to highlight the entire nested loop structure. After explaining the square pattern, he transitions to the next example, a 'Right Triangle'. The code for this pattern is shown: a for loop for i in range(1, 5), a nested for loop for j in range(i), and a print statement for an asterisk. He begins to explain this new pattern by writing the values of i on the side of the screen, starting with i=1, 2, 3, 4, 5.

  3. 5:00 – 7:01 05:00-07:01

    The instructor explains the right-angled triangle pattern. He demonstrates that for i=1, the inner loop runs for j=1, printing one asterisk. For i=2, the inner loop runs for j=1, 2, printing two asterisks, and so on. He uses a yellow triangle to visually represent the pattern. He then moves to the third example, a 'Number Pattern'. The code is shown: a for loop for i in range(1, 5), a nested for loop for j in range(1, i+1), and a print statement for j. He explains that this will print numbers from 1 to i in each row. He writes the values of i and j on the screen to illustrate the process. Finally, he presents the fourth example, a 'Multiplication Table Using Nested Loop'. The code is shown: a for loop for i in range(1, 6), a nested for loop for j in range(1, 6), and a print statement for i*j. He explains that this will print a 5x5 multiplication table. The video ends with a 'Thanks' slide.

The video provides a clear, step-by-step tutorial on using nested loops in Python to generate different patterns. It begins with a simple square pattern, which serves as a foundation for understanding the basic structure of nested loops. The instructor then builds complexity by introducing a right-angled triangle, a number pattern, and finally a multiplication table. Each example demonstrates a different way to control the number of iterations in the inner loop based on the outer loop variable, which is the key concept for creating varied patterns. The use of a digital whiteboard to write out the loop variables and illustrate the iteration process is an effective teaching method that helps students visualize the logic.

Loading lesson…