19 lines
540 B
Factor
19 lines
540 B
Factor
! Copyright (c) 2008 Reginald Keith Ford II.
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! See http://factorcode.org/license.txt for BSD license.
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USING: kernel math arrays sequences ;
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IN: math.function-tools
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! Tools for quickly comparing, transforming, and evaluating mathematical functions
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: difference-func ( func func -- func )
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[ bi - ] 2curry ; inline
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: eval ( x func -- pt )
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dupd call( x -- y ) 2array ; inline
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: eval-inverse ( y func -- pt )
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dupd call( y -- x ) swap 2array ; inline
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: eval3d ( x y func -- pt )
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[ 2dup ] dip call( x y -- z ) 3array ; inline
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