CurrencyHub - Cotações e Calculadoras
Real-time currency converter and financial calculators
What it does
Cotação do dólar hoje e do euro em reais em tempo real. Conversor de moedas, preço do ouro hoje, petróleo e S&P 500 hoje. Grátis e sem cadastro.
Converta moedas tradicionais e criptomoedas, acompanhe índices globais, commodities e os rendimentos dos títulos do Tesouro americano. Gratuito, rápido e sem cadastro. Simule a projeção do crescimento acumulado dos seus investimentos período a período com precisão. Calculadoras e cotações gratuitas, atualizadas em tempo real. Valores de referência de Dólar Americano convertidos para Real Brasileiro com a cotação atual do mercado. Acompanhe a cotação do dólar hoje em tempo real e descubra o valor do dólar em real a cada segundo. Use o conversor acima para saber quanto vale o dólar em reais hoje, converter dólar em real hoje em qualquer quantia e comparar a cotação dos dólares hoje com a taxa…from currencyhubcoin.com
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Commerce · 26d ago · equitybee.com
Launched alongside, August 2026
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Life & fun · 10d ago · louisabraham.github.io
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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com