interpolation This is obtained by supposing, as an approximation, that between x0 and x1 the graph of the function is a straight line joining the points (x0, f(x0)) and (x1, f(x1)). More complicated methods of interpolation use the values of the function at more than two values. See Lagrange interpolation, spline.
- decomposition
- decreasing function
- decreasing sequence
- Dedekind cut
- Dedekind, (Julius Wilhelm) Richard
- deduction
- deficient number
- definite integral
- deformation
- degenerate
- degenerate conic
- degenerate quadric
- degree
- degree
- degree
- degree
- degree-genus formula
- degrees of freedom
- degrees of freedom
- deka‐
- del
- Delian (altar) problem
- delta
- delta function
- demography