QRS@NTU Major Update — December 2025 Release

Published: December 10, 2025 Maintained by: QRS@NTU

This is one of the most comprehensive upgrades to the QRS@NTU platform to date, featuring major improvements to the website infrastructure, a significantly expanded finals archive, and enhanced revision notes and solutions for multiple SPMS and NBS modules.

1. Website Functionality Improvements

A series of core structural issues on the platform have been fixed:

✔ Folder Button (Expandable Sections) — Fixed

Previously, some folders failed to expand or load their contents.
This has now been resolved, and all nested course directories open correctly without refresh errors.

✔ Search Function — Fully Restored

Search now properly indexes every file across:

• Finals archives
• Revision notes
• Problem sheets
• Solutions (typed and handwritten)

Users should experience significantly more reliable and accurate search results.

✔ Ranking Logic — Redesigned

Courses are now automatically ranked based on number of files available, allowing students to quickly identify:

• Modules with comprehensive resources
• Newly updated courses
• Courses requiring further expansion

This upgrade also ensures consistency as new materials are added.

2. Finals Archive Expansion (AY22/23 – AY24/25)

Final examination papers have been added for over 70 SPMS and NBS courses, including multiple academic years for each module.

Some of the major courses receiving full finals coverage include:

SPMS Mathematics

• MH1201, MH1301, MH1403
• MH2500, MH3100, MH3300, MH3500
• MH3700, MH3701
• MH4100, MH4110, MH4200, MH4300
• MH4311, MH4501, MH4511, MH4512, MH4518
• MH4600, MH4601, MH4700, MH4701

NBS (Risk Management / Quantitative Finance)

• BR2207
• BR2210
• BR2211
• BR3213
• BR3208

Each module now contains at least one finals paper across the three academic years, with many having the full set from AY22/23, AY23/24, and AY24/25.

3. Expanded Notes & New Releases

📘 MH1300 — Enhanced Revision Notes

The MH1300 Foundations of Mathematics notes have been substantially expanded:

• More step-by-step proofs
• Additional examples
• Highlighted standard methods (truth tables, modular arithmetic, induction, Euclid algorithm, etc.)
• Improved visual structure for clarity
• Added unofficial Mark Scheme

📘 MH4514 — New Revision Notes

Complete revision notes for Financial Mathematics (MH4514) have been added:

• Coverage of all major topics
• Clean structure with definitions, examples, and key formulas
• Consistent layout following QRS@NTU’s latest formatting standards

📘 MH5200 — New Revision Notes

Full revision notes for Advanced Investigations in Linear Algebra I (MH5200) are now available:

• Expanded explanations
• Intuitive interpretations of abstract concepts
• Additional theorems, examples, and diagrams
• Polished LaTeX with unified formatting

📘 MH5200 Problem Sheet Solutions Enhanced

• At least two solution methods for each problem (e.g., algebraic vs geometric, or direct vs spectral approach)
• Clarified reasoning steps
• More intermediate derivations
• Added alternative insights, interpretations, and common pitfalls
• Updated notation to match advanced linear algebra conventions

This makes MH5200’s solution set one of the most comprehensive in QRS@NTU.

4. Marking Schemes Included in New Solutions

Where feasible, mark distributions are now included in:

• Finals solutions
• Problem sheet solutions
• Selected revision notes

This provides clearer expectations on exam-style writing and helps guide self-assessment.

5. Updated QRS@NTU Formatting Standards

All new materials uploaded after December 2025 follow a unified standard:

• Clean LaTeX typography
• Numbered sub-questions and structured headings
• Final results boxed for visibility
• Concise explanations with minimal redundancy
• Consistent mathematical notation across courses

These refinements improve readability and maintain professional quality across the entire library.

6. Accessing the Updated Materials

All updated files are available on:

👉 https://qrsntu.org
Navigate to your course under the Math Notes section.

For MH1300, MH4514, and MH5200, the latest notes and solutions are listed at the top of each module.

8. Feedback & Future Plans

We welcome suggestions from the NTU community.
If you notice:

• Missing files
• Broken links
• Suggested improvements
• Courses you want prioritised

Please reach out via the Telegram group or GitHub Issues.

Upcoming planned updates:

• Expansion of midterm archives
• Typed solutions for earlier handwritten years
• Additional cheat-sheets for selected modules
• Automated metadata generation updates

Thank you for supporting QRS@NTU.
We hope these improvements help you revise more effectively and navigate your courses with confidence.