Книга: Advanced PIC Microcontroller Projects in C

1.5.1 Decimal Number System

1.5.1 Decimal Number System

The numbers in the decimal number system, of course, are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. The subscript 10 indicates that a number is in decimal format. For example, the decimal number 235 is shown as 235₁₀.

In general, a decimal number is represented as follows:

an ? 10n + a_n–1 ? 10^n–1 + a_n-2 ? 10^n-2 + ……… + a₀ ? 10⁰

For example, decimal number 825₁₀ can be shown as:

825₁₀ = 8 ? 10² + 2 ? 10¹ + 5 ? 10⁰

Similarly, decimal number 26₁₀ can be shown as:

26₁₀ = 2 ? 10¹ + 6 ? 10⁰

or

3359₁₀ = 3 ? 10³ + 3 ? 10² + 5 ? 10¹ + 9 ? 10⁰

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