31. Thus, binary numbers have digits { 0, 1 }; decimal numbers have digits and so on. 32. A version of the template where the latitude and longitude are specified by signed decimal numbers . 33. Newer languages have been abandoning the prefix 0, as decimal numbers are often represented with leading zeroes. 34. Approximation can occur when a decimal number cannot be expressed in a finite number of binary digits. 35. For example, an attribute might be constrained to hold only a valid date or a decimal number . 36. In 1840, Augustin Cauchy also expressed preference for such modified decimal numbers to reduce errors in computation. 37. Groups of 3 hints at decimal numbers . 38. Lord Napier gave us decimal numbers . 39. Thus a single table of common logarithms can be used for the entire range of positive decimal numbers . 40. The length of an atom is expressed as an ASCII decimal number followed by a " : ".