In mathematical terms, what is a diaphram?

Question

In mathematical terms, what is a diaphram?

Answer 1

I have NO idea

Answer 2

what has this to do with ROYALTY??????

Answer 3

Chi lover is correct

but  there are other answers like:

Anatomy: A muscular membranous partition separating the abdominal and thoracic cavities and functioning in respiration. Also called midriff .

A membranous part that divides or separates.

A thin disk, especially in a microphone or telephone receiver, that vibrates in response to sound waves to produce electric signals, or that vibrates in response to electric signals to produce sound waves.

A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.

A disk having a fixed or variable opening used to restrict the amount of light traversing a lens or optical system.

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Answer 4

The diaphragm is modeled as being a linear mass-spring mechanical system having friction and a restoring force. ...