Data, Trigonometry & Vectors
Mean / Median Finder
Descriptive statistics for a data list.
x̄ = Σx / n
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Data, Trigonometry & Vectors
Analyze data and matrices, evaluate trigonometric relationships, and calculate with vectors.
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Data, Trigonometry & Vectors
Matrix Determinant & Inverse
Work with 2×2 or 3×3 matrices.
A⁻¹ = adj(A) / det(A)
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Data, Trigonometry & Vectors
Linear Regression
Regression line, r, and r².
ŷ = mx + b
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Data, Trigonometry & Vectors
Trig & Unit Circle
Evaluate six trigonometric functions.
sin θ, cos θ, tan θ and their reciprocals
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Data, Trigonometry & Vectors
Geometric Mean
Geometric mean of positive values.
GM = (x₁x₂⋯xₙ)¹⁄ⁿ
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Data, Trigonometry & Vectors
Vector Magnitude & Direction
Magnitude and atan2 direction of a vector.
|v| = √(x² + y²); θ = atan2(y,x)
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Data, Trigonometry & Vectors
Vector Addition
Add multiple 2D or 3D vectors.
⟨x₁,y₁⟩ + ⟨x₂,y₂⟩ = ⟨x₁+x₂,y₁+y₂⟩
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Data, Trigonometry & Vectors
DMS Angle Converter
Convert between decimal degrees and degrees, minutes, seconds.
decimal = degrees + minutes / 60 + seconds / 3600
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Data, Trigonometry & Vectors
3×3 Cramer's Rule
Solve three linear equations and display every determinant.
x = Dₓ/D; y = Dᵧ/D; z = D_z/D
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