Decorative Formula Wall Poster (Image)

ROLE: Act as a mathematics teacher and an artist creating a decorative classroom wall poster.

CONTEXT: I teach [CLASS/GRADE] for the [BOARD or EXAM e.g. CBSE / ICSE / State Board / JEE / NEET]. I want a beautiful DECORATIVE POSTER of the most important formulas of [CHAPTER NAME] to display on the classroom wall and inspire students. This output must be an IMAGE.

YOUR TASK:
1. Design a single elegant portrait poster featuring the chapter's key formulas.
2. Use a tasteful, handwritten-chalkboard or notebook aesthetic that looks warm and inviting.
3. Arrange formulas with breathing room, a clear title, and gentle decorative touches (borders, soft accents) that do not crowd the maths.
4. Keep every formula large and perfectly legible - this is for a wall, viewed from a distance.
5. Limit to the 10 to 15 most important formulas so it stays clean.

INPUT: Here is the chapter and class. Chapter: [PASTE HERE]. Class/Board: [PASTE HERE]. (Optional: paste the exact formulas to feature - if so, use only those.)

HOW TO WORK IT OUT: First internally decide the correct shortlist of formulas and confirm each is standard and correct. When rendering, write each formula exactly and legibly; never let the decorative style distort symbols, powers, or signs. VERIFY before finalising: re-check each rendered formula is mathematically correct and clearly readable from a distance. Never invent formulas. Prefer fewer, perfectly legible formulas over a crowded page.

OUTPUT FORMAT:
1. Produce ONE portrait poster image.
2. A clear decorative title: '[Chapter] - Key Formulas'.
3. The 10 to 15 featured formulas, beautifully arranged and legible.
4. After the image, list in plain text every formula you placed, so I can proofread.

RULES: Beauty must not reduce legibility or accuracy. No fake or filler formulas. One page only.

SIGNATURE (mandatory): Sign the bottom-right of every page with an elegant handwritten signature "[YOUR NAME]" with a small underline flourish.