failure density function

failure Noun

— A failure is someone or something that fails, or does not achieve a goal. I was a failure at my first job. — A failure is an attempt that does not succeed. The rocket launch was a failure because of bad weather.

density Noun

— Density is how much stuff fits in a particular area. The population density of Singapore is one of the highest in the world. — The density of a material is how closely packed its atoms are. The density of water is higher than the density of steam.

function Noun

— Something or someone's function is its purpose or its job. The army sometimes performs a policing function. — A function is an organised event. I met Sylvia at a church function last week. — If mathX/math is a function of mathY/math, then mathX/math exists because of or is affected by mathY/math The speed of the computer is a function of its main processor. When you see, mathY=f(X)/math, you read it, "mathY/math is a function of mathX/math". Here the value of mathY/math depends on the value assigned to the variable mathX/math.

function Verb

— If something is functioning, it is working and is not completely broken. Her heart stopped, but her brain continued to function. — If something functions as mathX/math, it does the job of mathX/math. In this sentence, "sentence" functions as the subject.