https://ilham.dev/tags/math/Recent content in Math on ilham.devHugo -- gohugo.ioenSun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-calculate-discounts-before-buying/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-calculate-discounts-before-buying/Discounts are easier to compare when I calculate the final price instead of only reading the percentage. The Discount Calculator tool handles the repetitive part so I can focus on checking whether the result makes sense.https://ilham.dev/posts/how-to-calculate-percentages-without-mental-math/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-calculate-percentages-without-mental-math/Percentages are simple until the question changes: percentage of, percentage increase, percentage decrease, and reverse percentage are different tasks. The Percentage Calculator tool handles the repetitive part so I can focus on checking whether the result makes sense.https://ilham.dev/posts/how-to-compare-benchmark-results-with-ratios/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-compare-benchmark-results-with-ratios/Benchmark comparison is easier when every result is compared against the fastest or baseline value. The Benchmark Builder tool handles the repetitive part so I can focus on checking whether the result makes sense.https://ilham.dev/posts/how-to-compare-unit-prices-when-pack-sizes-differ/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-compare-unit-prices-when-pack-sizes-differ/A larger package is not always cheaper. Unit price comparison puts products on the same scale. The Unit Price Comparator tool handles the repetitive part so I can focus on checking whether the result makes sense.https://ilham.dev/posts/how-to-estimate-finish-time-from-progress/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-estimate-finish-time-from-progress/An ETA is an estimate based on current progress and speed. It is useful, but it depends on the assumption that the pace stays similar. The ETA Calculator tool handles the repetitive part so I can focus on checking whether the result makes sense.https://ilham.dev/posts/how-to-evaluate-math-expressions-with-variables/Sun, 27 Sep 2026 00:00:00 +0700https://ilham.dev/posts/how-to-evaluate-math-expressions-with-variables/A math evaluator is useful when the calculation is more than a simple calculator entry but not big enough for a spreadsheet. I use Math Evaluator for the quick version of this task, then I review the output before relying on it.