
SUM//12
SUM//12 — Make exactly twelve.
@IagoCollarte · X
Literally the return to simple, play when you want as much as you want without being pestered games. PoC is here, AppStore soon-ish.
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SUM//12 — Make exactly twelve.
@IagoCollarte · X
Literally the return to simple, play when you want as much as you want without being pestered games. PoC is here, AppStore soon-ish.

将手写数学笔记转换为可编辑的 LaTeX 和 PDF。
u/Worth_Difference_282 · Reddit
Handwritten notes into latex + study tools - looking for feedback Hey everyone, I'm a mathematics student at university, and over the past few months I've been building something called LatexNotes in my free time. The original problem was pretty simple, I like taking paper handwritten maths notes, but whenever I wanted to turn them into proper LaTeX afterwards or to get AI to mark answers, it was a pain. I kept needing to switch between my university’s content platform, then to Chatgpt to e

Stud & Slab:免费的 DIY 家居计算器,包括木工、露台、混凝土和干墙等。
u/CaboWabo55 · Reddit
Built a DIY calculator site in a weekend — betting on "boring tools" over content After my last project (an AI debate platform) got rejected by AdSense for "low value content," I went the opposite direction: no content treadmill, no AI features, no backend. Just genuinely useful calculators. studandslab.com — 10 free calculators for woodworking and home projects (board feet, stair stringers, concrete, drywall). Everything runs client-side, so hosting is free and every visitor costs me $0.

Every calculator you'll ever need for money, health, math, and everyday conversions — worked examples included, nothing to sign up for.
@calculate_at · X

MathPal is an AI math tutor helping grade 6-9 students learn math step-by-step. Snap a photo, get instant explanations, practice, and track progress.
@kimindiehacker · X
i built it's a platform for students to master math concepts by breaking them down step by step.

通过交互式3D复平面可视化探索欧拉恒等式 e^{iπ} + 1 = 0。
@Sabrina7772 · X
I built my first app with Grok Build and had a lot of fun making it. It’s a little interactive lab for e^{iπ}+1=0. You start at 1, turn halfway around the circle, land on −1, then add 1 — and you can actually see why the equation works. Code: Any feedback is appreciated

输入数学题,逐步讲解解题过程和原理。
u/peterparkermarker · Reddit
MathIQ I built mathiq.io with Claude Code because I wanted a way for students struggling with college level maths to see how the problems can be broken down and not as intimidating. Each walkthrough goes from beginning to end and each step has a "why and how?" feature. Anon users get 1 free daily walkthrough powered by Haiku 4.5. Signed in users get 3 free daily walkthroughts powered by Haiku 4.5. Plus users get 5 Opus 4.6 walkthroughs plus 20 Sonnet 4.6. Pro users get 8 Opus/30

RealCalculators 提供 48 个免费在线计算器,涵盖财务、健康、数学和日常需求。
@avinashraj61815 · X
i vibe coded this week

Fast, free online calculators with no sign-up. Money, dates, cars and percentages, with the answer straight away and a breakdown of where every figure comes from.
@MyMicroTools · X
Building MyMicroTools 🧮 A growing collection of free calculators and useful tools for everyday life. 💰 Finance 📊 Math 🛠️ Everyday utilities No signup. No paywall. Just useful tools. 🌐

使用AI技术生成复杂的Excel公式。
Formulas AI — 帮助用户生成 Excel 公式,基于 DeepSeek-V3 的 AI 工具产品(需要用户自己填入key)

BizCalc:32+个免费商业计算器,用于计算利润率、损益平衡和自雇税费。
@BizCalcLab · X

用 470+ 个免费财务计算器计算抵押贷款、税收和退休。
@AfridiMunir · X