mathvector_dotproduct

Doing a dot product operation on different size vectors. All floats.

• Baseline: 3 dimension vector * 3 dimension vector
• Hundred: 100 dimension vector * 100 dimension vector
• Thousand: 1000 dimension vector * 1000 dimension vector

Note - cgmath and vek doesn't allow to do more than 4 dimensions.

	baseline	hundred	thousand
vek	0	-	-
cgmath	0	-	-
rulinalg	0.068	0.117	0.582
ndarray	0.073	0.121	0.592
nalgebra	0.009	0.193	1.131

Speed units are in microseconds per iteration. Less is better.

Crate versions

vek = "0.9.5"      # Generic 2D-3D math swiss army knife for game engines, with SIMD support and focus on convenience.
cgmath = "0.16.1"              # A linear algebra and mathematics library for computer graphics.
rulinalg = "0.4.2"         # A linear algebra library.
ndarray = "0.12.1"            # An n-dimensional array for general elements and for numerics. Lightweight array views and slicing…
nalgebra = "0.16.13"           # Linear algebra library with transformations and statically-sized or dynamically-sized matrices.

Compiled on: rustc 1.31.1 (b6c32da9b 2018-12-18)