MISSION 1 OF 1

Size square stencils

0 XP earned

Julia track: IntermediateMission: BeginnerBroadcastingVector arithmeticExponentiation

Before you start this intermediate track

Numeric arrays and functions. Work with ranges, broadcasting, and matrix coordinates.

Guided code reading and debugging. Runnable coding challenges are available in JavaScript, Python, and SQL.

0 / 2 challenges

LEARN THE CONCEPT

Understand it, then try it.

A dot turns a Julia operation into an element-by-element calculation called broadcasting. A stencil maker stores square side lengths in a vector and squares each length to find its area. The .^ operation produces a new vector. join makes the results easy to read as a compact line.

array_lab.jl

1sides = [2, 3, 5]2areas = sides .^ 23report = join(areas, ", ")4println(report)

Each mission is a standalone Julia 1.x script using Base. Arrays use their standard one-based indices. Run a single snippet with julia; no packages or input files are required.

Track the values line by line. Predict the result before running this example in your own editor.

Read the official language documentation

docs.julialang.org/en/v1/manual/arrays/docs.julialang.org/en/v1/base/math/