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# Math.sqrt ?

Greenhorn
Posts: 23
Could someone tell me what the sqrt methode from the Math library is for?

Marilyn de Queiroz
Sheriff
Posts: 9080
12
static double sqrt(double a)
Returns the correctly rounded positive square root of a double value. API for Math class

Greenhorn
Posts: 23
Could you please explain more easily?

Jack Coleman
Ranch Hand
Posts: 32
Do you know what a square root is?
If not, here is a definition:
A divisor of a quantity that when squared gives the quantity. For example, the square roots of 25 are 5 and -5 because 5 � 5 = 25 and (-5) � (-5) = 25.

Marilyn de Queiroz
Sheriff
Posts: 9080
12

You can substitute a different number for 25.0 to see the square root of another number. The square root of 9 is 3. The square root of 100 is 10.

Robbie shi
Greenhorn
Posts: 28
Static double sqrt(double)
output the square root
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Robbies
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