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Precalculus
Function grapher
Domain of functions (one variable)
Domain of functions (two variables)
Lagrange polynomial
Least squares method
Calculus
Derivative and partial derivative
Investigating functions
Taylor polynomial
Local maxima and minima in two variables
Integral calculus
Antiderivative
Definite integral and mean value
Geometrical applications of definite integral
Trapezoidal rule
Double integral
Line integral
Differential equations
First order ODE
Second order LDE
Autonomous system
Equations and inequalities
Bisection
Newton-Raphson method
Regula falsi
Fixed point iterations
System of inequalities (in one or two variables)
Marchant Silent Speed calculator in excellent condition - an absolute curiosity in the world of electromechnaical calculators
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