Some posts have DSP code included to help demonstrate the concepts. You can check them out under the post with code tag. Enjoy!
Introduction to Interpolation and Upsampling posted on September 1, 2022
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Power and Energy in Discrete-Time Signals posted on December 1, 2023The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.
Some posts have DSP code included to help demonstrate the concepts. You can check them out under the post with code tag. Enjoy!