Part of the series: Algebra & Other Math Lessons. The math symbol that is a circle slanted with a line through it is also known as the diameter. Find out about the math symbol that is a circle Comprehensive collection of 225+ math symbols used in algebra, categorized by subject and type into tables along with each symbol's name, usage and example. Basics on the topic Inequality Symbols: <, >, ≤, ≥. Inequality symbols are a shorthand notation used to compare different quantities. There are four inequality symbols "greater than", "less than", "greater than or equal to", and "less than or equal to". A circle with a line through the center of the circle. Any straight line that passes a circle's center and has its ending on the circle is called the diameter of the circle in geometry. The diameter can be identified as the longest straight line that can be drawn inside a circle. The general prohibition sign (official name, according to ISO 7010 ), also known as a no symbol, no sign, circle-backslash symbol, nay, interdictory circle or universal no, is a red circle with a red diagonal line through it (running from top left to bottom right), completely enclosing a pictogram to indicate something is not permitted. The symbol of a circle with a vertical line through it is known by different names - it's called circled dot, circle with a line through it, degree symbol, the no symbol, prohibition sign, among others. DWQW.

circle with line underneath symbol