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 / Percentage

Arithmetic Sequence Calculator

Compute the n-th term and the sum of the first n terms of an arithmetic sequence from its first term and common differen...

basic
15,535 4.9 1 min
Other

Cat Years Calculator

Estimate the human-equivalent age of a cat using the standard veterinary mapping (15 + 9 + 4 per year afterwards).

basic
5,899 4.5 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