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
Delta by Delta
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
The channel
printables
Worksheets
Print-ready PDF worksheets with answer keys. Free while the catalog grows.
Place Value Practice
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