Daniel Oh
Featured contributor MSc Applied Statistics; 7 years in analytics and data tooling.

Daniel Oh

Senior Contributor, Math & Statistics

0 calculators 0 articles Member since Jun 2026
Physics / Mechanics

Power Calculator

Compute mechanical or electrical power as the rate at which energy (work) is transferred per unit time.

basic
14,414 4.0 1 min
Math / Percentage

Scientific Notation Converter

Convert numbers between standard decimal form and normalized scientific notation (a × 10ⁿ with 1 ≤ |a| < 10).

basic
12,324 4.2 1 min
Math / Geometry

Slope Calculator

Find the slope of the line through two points, plus the line equation in slope-intercept form.

basic
18,800 4.7 1 min
tutorial Math

Percentages Without the Headache

Every "X% of Y" problem, every "what percent of", every percent-change question — written out the way you'd actually say them.

Daniel Oh Daniel Oh
3 min

Reviewed by Daniel Oh

These calculators were technically reviewed by Daniel Oh for accuracy.