ASCII Character <Less than (or open angled bracket)
The less-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the left, <, has been found in documents dated as far back as the 1560s. In mathematical writing, the less-than sign is typically placed between two values being compared and signifies that the first number is less than the second number. Since the development of computer programming languages, the less-than sign and the greater-than sign have been repurposed for a range of uses and operations. The less-than sign, <, is an original ASCII character (hex 3C, decimal 60).