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# subject area of cirlce.

Posts: 13Member
what is meaning of double-precision in the following question?
[blue]
Write a function that returns the double-precision area of a circle, given the double precision radius passed to it. The formula to calculate the radius of a circle is .

what will be the value of radius.? [/blue]

and what will be the value of radius in above question?
Talha Nasir

• Posts: 770Member ✭✭✭
: what is meaning of double-precision in the following question?
: [blue]
: Write a function that returns the double-precision area of a circle, given the double precision radius passed to it. The formula to calculate the radius of a circle is .
:
:
: what will be the value of radius.? [/blue]
:
: and what will be the value of radius in above question?
: Talha Nasir
:
:

[green]Use [italic]double[/italic] variables as opposed to [italic]float[/italic] for [italic]radius[/italic] and [italic]area[/italic]. How the heck do I know what the value of radius is going to be? I'm not clairvoyant/omniscient.[/green]
• Posts: 1,784Member
: : what is meaning of double-precision in the following question?
: : [blue]
: : Write a function that returns the double-precision area of a circle, given the double precision radius passed to it. The formula to calculate the radius of a circle is .
: :
: :
: : what will be the value of radius.? [/blue]
: :
: : and what will be the value of radius in above question?
: : Talha Nasir
: :
: :
: How the heck do I know what the value of radius is going to be? I'm not clairvoyant/omniscient.[/green]
:
With some math it should be:
• Posts: 78Member
That should be exactly what you need:[CODE]double AreaOfCircle(double radius)
{
}[/CODE]

: what is meaning of double-precision in the following question?
: [blue]
: Write a function that returns the double-precision area of a circle, given the double precision radius passed to it. The formula to calculate the radius of a circle is .
:
:
: what will be the value of radius.? [/blue]
:
: and what will be the value of radius in above question?
: Talha Nasir
:
:
• Posts: 64Member
: That should be exactly what you need:[CODE]double AreaOfCircle(double radius)
: {