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
Math / Geometry

Trigonometry Calculator

Compute sine, cosine, tangent, secant, cosecant, and cotangent of any angle in degrees or radians.

basic
4,807 4.8 1 min
Physics / Mechanics

Projectile Range Calculator

Compute the horizontal range, time of flight, and maximum height of a projectile launched from level ground at speed v₀...

basic
9,417 4.6 1 min
Biology / Genetics

Allele Frequency Calculator

Compute the frequency of two alleles in a population from observed counts of homozygous-dominant, heterozygous, and homo...

basic
18,936 4.1 1 min
Math / Geometry

Hexagon Calculator

Compute the area, perimeter, long diagonal, and short diagonal of a regular hexagon from any side length.

basic
22,284 4.5 1 min
Ecology / Energy

Solar Panel Calculator

Estimate the solar panel system size needed to cover your monthly electricity usage given local sun hours and system eff...

basic
11,484 5.0 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.