From Shewchuk's "What is a Good Linear Element", he writes: "small angles are bad for matrix conditioning but not for interpolation". He uses this example to explain that there are tradeoffs between different geometric shapes and it might not be immediately clear what kind of shape properties are good for the given application.
From Shewchuk's "What is a Good Linear Element", he writes: "small angles are bad for matrix conditioning but not for interpolation". He uses this example to explain that there are tradeoffs between different geometric shapes and it might not be immediately clear what kind of shape properties are good for the given application.