Difference between revisions of "Square Root"
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imported>DragoonWraith (starting this) |
imported>DragoonWraith m |
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Almost unbelievably, Oblivion does '''not''' include a square root function. Therefore one must use this code to get the square root of a number. | Almost unbelievably, Oblivion does '''not''' include a square root function. Therefore one must use this code to get the square root of a number. | ||
This uses Newton-Raphson approximation, and gives accuracy to two decimal places for numbers less than or equal 100. Adding more steps to it increases accuracy very quickly. | This uses Newton-Raphson approximation, and gives accuracy to two decimal places for numbers less than or equal to 100. Adding more steps to it increases accuracy very quickly. | ||
scriptname SquareRoot | scriptname SquareRoot | ||
Revision as of 16:23, 6 May 2006
Almost unbelievably, Oblivion does not include a square root function. Therefore one must use this code to get the square root of a number.
This uses Newton-Raphson approximation, and gives accuracy to two decimal places for numbers less than or equal to 100. Adding more steps to it increases accuracy very quickly.
scriptname SquareRoot
;originally supplied by Galerion
float inputNumber
float SqRtValue
Begin {appropriate blocktype}
;how inputNumber is set depends on implementation.
;Here it is the number of training sessions the player has had.
set SqRtValue to inputNumber/2
set SqRtValue to ( SqRtValue + (inputNumber / SqRtValue ) ) / 2
set SqRtValue to ( SqRtValue + (inputNumber / SqRtValue ) ) / 2
set SqRtValue to ( SqRtValue + (inputNumber / SqRtValue ) ) / 2
set SqRtValue to ( SqRtValue + (inputNumber / SqRtValue ) ) / 2
End
The inputNumber variable is your input and the SqRtValue is the output variable. In other words, SqRtValue=(inputValue)^(1/2)