Add type MVec3

Author: ufechner7

Project.toml

@@ -12,5 +12,6 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
 Measures = "442fdcdd-2543-5da2-b0f3-8c86c306513e"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

src/VortexStepMethod.jl

@@ -1,6 +1,7 @@
 module VortexStepMethod
 
 using LinearAlgebra
+using StaticArrays
 using Logging
 using Statistics
 using Colors
@@ -18,6 +19,13 @@ export add_section!, set_va!
 export calculate_span, calculate_projected_area
 export plot_wing, plot_circulation_distribution, plot_geometry, plot_distribution, plot_polars
 
+"""
+   const MVec3    = MVector{3, Float64}
+
+Basic 3-dimensional vector, stack allocated, mutable.
+"""
+const MVec3    = MVector{3, Float64}
+
 # Include core functionality
 include("wing_geometry.jl")
 include("filament.jl")