scarp / by example
Menu

CHAPTER 04 · 12 LESSONS

04 · Numeric collections and types

Scope: the current compiler offers specialised numeric vectors, integer collections and matrix/tile operations, not a general-purpose list/map/set library.

English guide ↗ हिन्दी अध्याय ↗ Coding lab for this chapter ↗

YOUR CHAPTER LEARNING PATH · सीखने का क्रम

Read. Check. Build.

Three linked steps using real Scarp source and verified output.

  1. Read the lessons · पाठ पढ़ें

    Work through all 12 verified examples. Save optional local lesson progress as you learn; this does not certify code execution.

    Start with Vectors ↗

    Lesson tracking is optional and only available when browser storage works.

  2. Check understanding · समझ जाँचें

    Try 3 bilingual questions linked directly to their original source and expected output. No quiz score is stored.

    Review all three questions here · यहाँ अभ्यास करें ↓

  3. Write Scarp · कोड लिखें

    Edit the real starter locally, compare output with the compiler-verified goal, and use the hint or tested solution when needed.

    Open Average a vector lab ↗

Lesson completion is voluntary local tracking. Passing a quiz or lab is not automatically recorded or claimed by this website. The Scarp compiler runs locally, not in your browser.

Lessons in this chapter

01 Vectors Numeric vector literals, len, indexing and numeric operationsQuick check · प्रश्न 02 Vector Windows Selecting and combining numeric windowsQuick check · प्रश्न 03 Integer Collections Explicit integers values and integer window helpersQuick check · प्रश्न 04 Typed Declarations Type annotations for vector/float/tile/boolean/string 05 Float Smoothing Float-only weighted blending, default arguments and needs contracts 06 Tile Windows Windowed vector into a 2×2 tile, transpose/column, flatten and matvec 07 Numerical Kernels variance, stddev, relu, sigmoid and tanh on numeric data 08 Vector Probabilities Explicit weight normalization, softmax, and probability checks 09 Vector Norm norm length and immutable normalize for a 3-4 vector 10 Float Refinement Newton-style square-root refinement, bounded steps, typed contracts 11 Vector Allocation fill, len and sum on a three-element numerical vector 12 Root Mean Square Stable rms on signals and visible vector windows
Practice this chapter · इस अध्याय का अभ्यास करें 3 bilingual, compiler-evidenced questions

Answer all three questions using the checked-in lessons. Feedback runs only in your browser; there is no stored score, automatic lesson completion or Scarp execution. Answers remain readable without JavaScript.

Question 1 of 3 · Vectors · View source and recorded output ↗

SOURCE-BACKED SELF-CHECK · स्रोत-आधारित अभ्यास

Quick checkpoint / त्वरित अभ्यास

What mean does mean(values) print for [1.0, 2.0, 3.0, 4.0]?[1.0, 2.0, 3.0, 4.0] के लिए mean(values) क्या प्रिंट करता है?

Reveal the source-backed answer / सही उत्तर देखें

2.5 — The four values sum to 10.0. Dividing by their count (4) gives a mean of 2.5.2.5 — चार संख्याओं का योग 10.0 है। 10.0 को 4 से भाग देने पर औसत 2.5 मिलता है।

This question checks understanding of a recorded compiler output. It does not run Scarp in the browser. यह प्रश्न सत्यापित आउटपुट पर आधारित है; ब्राउज़र में Scarp नहीं चलता।

Question 2 of 3 · Vector Windows · View source and recorded output ↗

SOURCE-BACKED SELF-CHECK · स्रोत-आधारित अभ्यास

Quick checkpoint / त्वरित अभ्यास

Which values are printed for window(values, 1, 2)?window(values, 1, 2) के लिए कौन-से मान प्रिंट होते हैं?

Reveal the source-backed answer / सही उत्तर देखें

[20.0, 30.0] — Starting at index 1 selects the second and third values of [10.0, 20.0, 30.0, 40.0].[20.0, 30.0] — index 1 से शुरू करने पर [10.0, 20.0, 30.0, 40.0] में दूसरे और तीसरे मान चुने जाते हैं।

This question checks understanding of a recorded compiler output. It does not run Scarp in the browser. यह प्रश्न सत्यापित आउटपुट पर आधारित है; ब्राउज़र में Scarp नहीं चलता।

Question 3 of 3 · Integer Collections · View source and recorded output ↗

SOURCE-BACKED SELF-CHECK · स्रोत-आधारित अभ्यास

Quick checkpoint / त्वरित अभ्यास

What total is produced by summing the integer window [2, 3, 4]?integer window [2, 3, 4] का योग कितना होता है?

Reveal the source-backed answer / सही उत्तर देखें

9 — ints_window selects 2, 3 and 4, and the repeat loop adds these three integers to obtain 9.9 — ints_window से 2, 3 और 4 चुने जाते हैं। repeat लूप इन्हें जोड़कर 9 प्राप्त करता है।

This question checks understanding of a recorded compiler output. It does not run Scarp in the browser. यह प्रश्न सत्यापित आउटपुट पर आधारित है; ब्राउज़र में Scarp नहीं चलता।

All examples are validated with Scarp v0.0.6-alpha.3. Each lesson has its own code and expected-output page.