Feature map

Every feature of VecFor, where the tutorial teaches it, where the cookbook shows it and where the reference describes it.

Feature	How	Tutorial	Cookbook	Reference
The vector type	type(vector), components x, y, z	1	components	The vector type
Versors	ex, ey, ez	1	components	Versors
Structure constructor	vector(x, y, z)	1	components	Building a vector
Assignment of a number	v = 2.5_R8P, any integer or real kind	1	one number	Assignment
Sum, difference, sign	a + b, a - b, -a, +a	2	sum	Arithmetic
Scaling	s * a, a * s, a / s, any kind	2	scaling	Arithmetic
A number on every component	a + s, s + a, a - s, s - a	2	plus a number	Arithmetic
Component-wise product, quotient	a * b, a / b	2	component-wise	Arithmetic
Dot product	a .dot. b	3	products	Products
Cross product	a .cross. b	3	products	Products
Accurate products	crossproduct_accurate, dotproduct_accurate	3	accurate	Accurate products
Length	normL2, sq_norm	3	length	Lengths and directions
Unit vector	normalized, normalize	3	unit vector	Lengths and directions
Checked normalization	normalized_checked, ok, min_norm	3	checked unit vector	Lengths and directions
Angle	angle	3	angle	Angle
Methods or free functions	a%normL2() or normL2(a)	3	two spellings	Names
Parallel and orthogonal components	a .paral. n, a .ortho. n	6	components	Products
Comparisons	==, /=, <, <=, >, >=, with vectors and numbers	8	vectors, numbers	Comparisons
Face normals and areas	face_normal3, face_normal4, norm	4	triangle, quadrilateral	Face normals
Cell measures	triangle_area, tetrahedron_volume, polygon_vector_area	4	area, volume	Measures
Distance from a line	distance_to_line	5	line	Distances
Distance from a plane	distance_to_plane, distance_vectorial_to_plane	5	plane	Distances
Projection onto a plane	projection_onto_plane	5	plane	Distances
Point location	barycentric_triangle, barycentric_tetrahedron, closest_point_triangle	5	inside, closest point	Point location
Collinear points	is_collinear, tolerance	5	collinear	Predicates
Concyclic points	is_concyclic, tolerance	5	concyclic	Predicates
Rotation	rotate(axis=, angle=), rotate(matrix=), rotation_matrix	7	axis, matrix	Rotations
Mirror	mirror(normal=), mirror(matrix=), mirror_matrix	7	plane, matrix	Mirrors
Matrix times vector	m .matrix. a	7	any matrix	Products
Arrays of vectors	elemental operators and functions, p%x	8	arrays	Arrays
Precisions	vector_R4P, vector_R8P, vector_R16P, versors and functions of each	9	each precision	Precision and kinds
True quadruple precision	-DPENF_R16P	9	quadruple	Quadruple
Default kind	vector, ex, ..., -DDEFKIND_R4P, -DDEFKIND_R16P			The default kind
Printing	printf(prefix=, sep=, suffix=, unit=)	10	printing	printf
Files	save_into_file, load_from_file, fmt, pos	10	binary, text, stream	Files
Record length	iolen	10	direct access	iolen
I/O errors	iostat, iomsg	10	errors	Errors
Device-callable routines	*_dev, 38 for each kind	11	device	Device-callable API

Not available: vectors of other dimensions than three; operations between vectors of two different kinds; sum, dot_product or matmul of the intrinsics on vectors; a tolerance in the comparisons (see Behaviour and limitations).