The absence of sudden jumps in a function. A function y = f(x) is continuous if as x changes by arbitrarily small amounts there are no sudden changes in y. Some functions are continuous for all values of x, for example y = x². Other functions are continuous except at particular values of x. The function y = 1/x, for example, is continuous except at x = 0: as x approaches 0 from above, y becomes indefinitely large; as x approaches 0 from below, y becomes indefinitely large and negative; and for x = 0, y is not defined. In commonsense terms, y is a continuous function of x if its graph, with x and y on the axes, can be drawn without removing one's pen from the paper.

• corporation
• Corporation Tax
• corporatism
• correlation
• correlation of returns
• corruption
• corset, the
• cosine
• cost
• cost accounting
• cost-benefit analysis
• cost centre
• cost curve
• cost-effectiveness
• cost function
• cost inflation
• cost, insurance, and freight
• cost minimization
• cost of capital
• cost of living index
• cost of protection
• cost-plus pricing
• cost-push inflation
• costs
• cost schedule