輸入計算
數學公式
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Interest/Growth Rate | 6% per year |
---|---|
Rule of 72 Estimate | 12 years |
Exact Doubling Time | 11.9 years |
Approximation Error | 0.88% |
Calculate the margin of error for your statistical sample. This easy-to-use tool helps determine the accuracy of your survey results or poll estimates.
使用這個易用的立方根計算機計算任何數字的立方根。輸入一個數字,立即獲得其精確的立方根值。
使用這個免費的線上工具輕鬆計算百分比改進。輸入原始值和新值,以確定各種情況下的改進或下降百分比。
輕鬆計算坡度百分比。輸入上升高度(垂直距離)和水平距離,確定斜坡的陡峭程度。為建築、景觀和工程項目提供準確結果。
Calculate inverse normal distribution with precision. Input probability (0-1), mean (μ), and standard deviation (σ) to find the corresponding value in the normal distribution curve.
使用這個線上碼錶準確測量時間間隔。輕鬆開始、停止和重設。
Free online countdown timer. Set hours, minutes, and seconds to count down easily. Simple, fast, and useful for work, study, or daily tasks.
Simple online counter tool. Increase, decrease, or reset numbers instantly. Set custom step values and limits with ease.