Xiphoid Dice Roller is a simple application that rolls dice using the D&D "dice string" standard; e.g. "1d4+1", "2d10", "1d%", etc. You can use standard mathematical operations on dice rolls. Dice are represented as follows: "<number of dice>d<number of sides on dice>". There is a special value that can be used in the "number of sides on dice": a percent sign ("%") represents 100. You can also omit the "number of dice"; it defaults to 1.