Approximation of Decimal Numbers. A decimal number has two parts: a fractional part and a whole number separated by a decimal point. Rounding decimal numbers is similar to rounding …
The approximation (2) is often written in an equivalent form that you should become familiar with; it makes use of a dependent variable. Writing (3) y = f(x), ∆x = x −a, ∆y = f(x) −f(a), the …