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Mathematics models calculators
Explore 12 free mathematics models calculators. Calculate in your browser with clear inputs, worked examples, and transparent methods.
12 calculators available
- Angle Between Two Nonzero Vectors
Find the principal angle for vectors entered as components or starting and ending coordinates in two or three dimensions.
- Axis-Aligned Ellipse Foci
Locate foci and the horizontal and vertical semiaxis endpoints for a translated ellipse.
- Circle Coefficients and Equivalent Forms
Complete the square to connect general, center-radius and parametric circle forms.
- Integer Euclidean and Signed Remainders
Compare the nonnegative Euclidean residue with captured signed remainder alternatives for positive or negative divisors.
- Paired Triangle Sides by the Sine Rule
Solve each captured side-angle pair and inspect a valid supplementary-angle alternative in the SSA case.
- Parallelepiped Volume and Surface Area
Compute geometry from three edge vectors, four vertices or edge lengths with included angles.
- Perimeter of Plane Shapes
Find boundary length for circles, sectors, triangles, quadrilaterals, annuli and regular polygons with all captured entry branches.
- Rare-Event Expected Counts and Exposure
Explore expected counts and exposure duration under an entered rare-event rate.
- Signed Integer Division and Remainders
Inspect truncating and alternate integer quotient/remainder identities for signed inputs.
- Transpose a Matrix up to Four by Four
Swap rows and columns for all captured matrix dimensions from one through four.
- Triangle Heights in Four Forms
Relate heights, areas, side lengths and angles in general, equilateral, isosceles and right triangles.
- Triangle Orthocenter from Coordinates
Intersect two altitude lines to find the orthocenter of a nondegenerate coordinate triangle, including right triangles.