
Credit Card Calculator: Find the Card That Pays You Most | Cardocrat
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@cardocrat · X
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@cardocrat · X

使用Apexa Pro的100+免费计算器进行数学、化学、物理和财务计算,无需注册。
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other

使用免费商业计算器分析利润率、损益平衡点和税务。
@BizCalcLab · X

计算抵押贷款、贷款、税款和储蓄的在线计算器
@darsh0891 · X
Meet CalcyFinance — the simple way to track your budgets, monitor spending, hand actually hit your savings goals without the headache. Stop guessing where your money goes. Try it out: 👍 #PersonalFinance #Budgeting #Fintech #buildinpublic

无需注册即可访问305+计算器,涵盖财务、健康、数学和日常转换。
@calculate_at · X
实时追踪Bitcoin供应量数据
@_nikzzy07 · X
i've built my first app, its a BTC supply tracker i hope you guys like it!!

观看动画演示微积分问题的逐步求解(导数、积分、极限)。
marcushuang4595 · V2EX
做了一个会把微积分解题过程“动起来”的计算器,想听听大家的意见 最近做了一个微积分学习工具 CalculusMate 。 起因是我发现很多计算器只给最终答案,即使列出步骤,也很难看出表达式究竟是怎样一步步变化的。所以我尝试把求导、积分和极限的计算过程做成可以逐步播放的形式。 目前支持: - 导数、积分和极限计算 - 展示每一步使用的规则 - 动画演示表达式的变化 - 支持常见数学符号键盘 - 中英文界面 - 基础计算无需注册 可以从这个页面体验: https://calculusmate.com/step-by-step 免费版本: https://calculusmate.com/free 目前还处于早期阶段,我比较想知道: 1. 解题步骤是否足够容易理解? 2. 动画是帮助理解,还是会让页面显得太复杂? 3. 还希望优先支持哪些题型? 欢迎直接指出问题,尤其是计算结果、移动端体验和表达不清楚的地方。

ApexVol 实时期权终端,显示 6000+ 股票的波动率、希腊字母和伽玛敞口。
@apexvol · X
Options are a volatility bet, but price charts can't show you the vol. Our terminal puts the whole surface on one screen: IV rank and percentile, term structure, skew, vol risk premium, dealer gamma and implied earnings moves, across ~6,000 tickers

用于宏观经济研究的AI平台,包含每日分析、央行监测和交易工具。
@ChrizBogota · X
A great demo of why in Financial Markets you have to use Grok, it's not affected by "training cut-off date" like the other models. is 100% run on Grok, (but mostly built with Claude).

Coursey shows the real data on online courses — member counts, revenue estimates, pricing, and rankings — backed by honest reviews, so you can pick the course that's actually worth
@00jbam · X
buying courses online are difficult, expensive, and sometimes sketchy, however coursey makes the entire process more seamless and effortless.

免费在线计算器和转换工具,用于金融、健康和教育,无需注册。
@Toolvica · X

模拟应用全球收入,扣除app商店佣金、增值税和预扣税。
mangrove · V2EX
出海 SaaS/APP 怎么定价?手搓了个沙盘模拟工具 最近在和朋友一起看了下工具类产品的报表 发现有一些持续创收的产品,其实最终看下来,还是倒贴的 因为一开始就自己俩人捣鼓,也不懂专业的财务知识,后面慢慢才发现会存在 gap 值 这一些 gap 值的原因就是各种佣金、消费税和预扣税等等 而且这个和开发者账号主体以及产品推广的地区还都有关系 捋清楚之后,自己也做了这个工具 也希望有专业的小伙伴可以给点宝贵意见哈~ https://trueproceeds.com/