PrismKit計算機百分比計算機百分比計算機在瀏覽器中執行本機複製連結Markdown計算一個數的百分之幾、一個數占另一個數的百分比，以及變化百分比。數學運算式計算機Type a mathematical expression and get the result, with support for functions like sqrt, sin, and log.長寬比計算機Reduce a width and height to its aspect ratio, or resize while keeping the ratio locked.