$$
\newcommand{\R}{\mathbb{R}}
\newcommand{\C}{\mathbb{C}}
\newcommand{\N}{\mathbb{N}}
\newcommand{\norm}[1]{\left\lVert #1 \right\rVert}
\newcommand{\abs}[1]{\left\lvert #1 \right\rvert}
\newcommand{\weakto}{\rightharpoonup}
\DeclareMathOperator{\supp}{supp}
$$
We prove a result on interpolation error estimates for piecewise linear functions under the maximum angle condition.
We plot a Möbius strip using Makie.jl, and cut it from the middle
