Delta by Delta
For engineers, students, and simulation practitioners
Animated derivations of the math behind simulation — CFD, linear algebra, machine learning. Intuition first, then the full math, nothing skipped.
Watch on YouTube →deltabydelta.com
The derivation your textbook skipped.
Math explained step by step — animated derivations for engineers and students, plus printable practice worksheets. All of it built in Python.
on YouTube
For engineers, students, and simulation practitioners
Animated derivations of the math behind simulation — CFD, linear algebra, machine learning. Intuition first, then the full math, nothing skipped.
Watch on YouTube →printables
Print-ready PDF worksheets with answer keys. Free while the catalog grows.
Sixteen problems in three parts: value of the underlined digit, expanded form, and comparing numbers. Answer key on the last page. US Letter, print-ready.
Download PDF · Free