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Rectangle method
Numerical integration method
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Digit sum
Sum of a number's digits
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Mean squared displacement
Measure of the deviation of the position of a particle over time
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Empirical distribution function
Distribution function associated with the empirical measure of a sample
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Precision (computer science)
Measure of random errors in a system: the variation among measurements of the same value
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Multinomial theorem
Theorem about how to expand a power of a sum in terms of powers of the terms in that sum. It is the generalization of the binomial theorem to polynomials
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Vlasov equation
Partial differential equation describing the time evolution of plasma
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Macaulay brackets
Notation used to describe discontinuous functions
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Natural exponential function
Exponential function with base e, denoted exp(x) or e^x
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absorption identity for binomial coefficients
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Sign function
Mathematical function that extracts the sign of a real number or complex number
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lifting theorem
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Dirichlet function
Indicator function of rational numbers
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Faulhaber's formula
Expression for sums of powers
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Beta function
Mathematical function
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Darboux integral
Integral constructed using Darboux sums
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Spline (mathematics)
Special function defined piecewise by polynomials
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Tridiagonal matrix algorithm
Variant of Gaussian elimination for solving tridiagonal systems of equations
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Centroid
Mean ("average") position of all the points in the shape; mean position of all the points in all of the coordinate directions; point at which a cutout of the shape could be perfectly balanced on the tip of a pin