Online learning

NexsoonUni. Online courses, a learning library and verifiable certificates.

Pandas, from CSV to a grouped report

Inspect a small dataset, handle missing values and build a summary whose counts and totals can be checked against the original rows.

Build a matrix from the images of basis vectors, predict the effect on a grid and explain why the order of matrix multiplication matters.

Derive growth rates from loops and use a small trace to check an asymptotic claim.

Use a keyboard diagram to count semitones and transpose a melody while preserving its shape.

Compare distance units and explain how a change in viewpoint helps infer stellar distance.

Separate name resolution, reachability and application errors using a small diagnostic trace.

Read an API contract, interpret responses and write a plan for retrieving a complete collection.

Deliver a simple model with checked units, mesh geometry and export compatibility.

Calculate energy from power and time, then compare measurements on a common basis.