Category

Coordinate Geometry Calculators

Points, lines, and coordinate systems

40 calculators

Line of Intersection of Two Planes

Find the line of intersection of two planes given by ax + by + cz = d or by a point and a normal vector. Returns the direction…

Intersection of Two Lines

Find the point of intersection of two lines from the slope-intercept form (y = ax + b) or the general form (Ax + By + C =…

Latus Rectum

Find the latus rectum of a parabola (L = |4p|), an ellipse or a hyperbola (L = 2b²/a) along with the semi-latus rectum, eccentricity,…

Cylindrical Coordinates

Convert between Cartesian (x, y, z) and cylindrical (ρ, θ, z) coordinates of any point in 3D space. Supports degrees and…

Cosine Similarity

Calculate the cosine similarity S_C between two N-dimensional vectors (2 to 8 components) using S_C = (a·b)/(‖a‖‖b‖). Returns…

Equation of a Sphere

Write the equation of a sphere in standard form (x−h)²+(y−k)²+(z−l)²=r² or expanded form. Build it from the center and radius,…

Triangulation

Find the coordinates of an unknown point from two known locations and their bearings. Solve intersection (locate a landmark)…

Dot Product

Compute the dot product a · b of two 2D or 3D vectors using a·b = a_x·b_x + a_y·b_y + a_z·b_z. Returns the scalar product,…

Parallelepiped Volume

Calculate the volume of a parallelepiped from three vectors, four vertices, or edge lengths and angles using the scalar triple…

Cross Product

Compute the cross product a × b of two 3D vectors using a×b = (a_y·b_z − a_z·b_y, a_z·b_x − a_x·b_z, a_x·b_y − a_y·b_x).…

Vector Projection

Find the orthogonal (vector) projection of vector a onto vector b using proj = (a·b / b·b) × b. Works for 2D and 3D vectors…

Rotation

Rotate a point in the coordinate plane around the origin or an arbitrary pivot by any angle. Enter the point, pivot, angle…