Initial checkin.
Doug Coleman
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USING: kernel math dimensioned si-units ;
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! From: http://physics.nist.gov/constants
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IN: si-units
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! speed of light in vacuum
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: c 299792458 m/s ;
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: c0 299792458 m/s ; ! same as c
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: c-vacuum 299792458 m/s ; ! same as c
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! more to come
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@ -0,0 +1,97 @@
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USING: physical-constants conversions ;
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USING: kernel prettyprint io sequences words lists vectors inspector math errors namespaces ;
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IN: units-internal
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: seq-diff ( seq1 seq2 -- seq2-seq1 )
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[ swap member? not ] subset-with ; flushable
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: seq-intersect ( seq1 seq2 -- seq1/\seq2 )
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[ swap member? ] subset-with ; flushable
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IN: units
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TUPLE: dimensioned val top bot ;
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C: dimensioned
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[ set-dimensioned-bot ] keep
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[ set-dimensioned-top ] keep
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over number? [ "dimensioned must be a number" throw ] unless
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[ set-dimensioned-val ] keep ;
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: remove-one ( obj seq -- seq )
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[ index ] keep over -1 = [
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2drop
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] [
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[ 0 -rot <slice> ] 2keep
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>r 1+ r> [ length ] keep <slice> append
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] if ;
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: dimensions ( dimensioned -- top bot )
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dup >r dimensioned-top r> dimensioned-bot ;
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: 2remove-one ( obj seq seq -- seq seq )
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pick swap remove-one >r remove-one r> ;
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: symbolic-reduce ( seq seq -- seq seq )
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[ seq-intersect ] 2keep rot dup empty? [
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drop
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] [
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first -rot 2remove-one symbolic-reduce
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] if ;
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: reduce-units ( dimensioned -- )
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dup dimensions symbolic-reduce pick set-dimensioned-bot swap set-dimensioned-top ;
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: 2reduce-units ( d d -- )
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>r dup reduce-units r> dup reduce-units ;
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: 2val ( d d -- )
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[ dimensioned-val ] 2apply ;
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: =units?
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>r dimensions 2list r> dimensions 2list = ;
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: d+ ( d d -- )
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2dup =units? [
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"d+: dimensions must be the same" throw
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] unless
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dup dimensions
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>r >r 2val + r> r> <dimensioned> ;
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: d- ( d d -- )
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2dup =units? [
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"d-: dimensions must be the same" throw
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] unless
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dup dimensions
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>r >r 2val - r> r> <dimensioned> ;
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: add-dimensions ( d d -- d )
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>r dimensions r> dimensions >r swap >r append r> r> append 0 -rot <dimensioned> ;
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: (d*)
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>r add-dimensions r> over set-dimensioned-val dup reduce-units ;
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: d* ( d d -- )
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2dup 2val * (d*) ;
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: swap-dimensions ( d -- d )
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dup dimensions rot [ set-dimensioned-top ] keep [ set-dimensioned-bot ] keep ;
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: d/ ( d d -- )
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swap-dimensions 2dup 2val / (d*) ;
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: d-inv ( d -- d )
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swap-dimensions dup dimensioned-val 1 swap / over set-dimensioned-val ;
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: d-product ( v -- d ) 1 { } { } <dimensioned> [ d* ] reduce ;
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! does not compile
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! Example: 4 m { km } { } convert
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: convert ( d top bot -- val )
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>r [ [ 1 swap execute , ] each ] { } make d-product r>
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[ [ 1 swap execute d-inv , ] each ] { } make d-product
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d*
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2dup =units? [ "cannot make that conversion" throw ] unless
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2val / ;
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@ -0,0 +1,10 @@
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USING: parser sequences words compiler ;
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[
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"contrib/units/dimensioned.factor"
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"contrib/units/si-units.factor"
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"contrib/units/constants.factor"
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] [ run-file ] each
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! "" words [ try-compile ] each
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@ -0,0 +1,136 @@
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USING: math units ;
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IN: si-units
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! SI Conversions
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! http://physics.nist.gov/cuu/Units/
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! Y Z E P T G M k h da 1 d c m mu n p f a z y
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: yotta>1 1000000000000000000000000 * ;
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: zetta>1 1000000000000000000000 * ;
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: exa>1 1000000000000000000 * ;
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: peta>1 1000000000000000 * ;
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: tera>1 1000000000000 * ;
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: giga>1 1000000000 * ;
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: mega>1 1000000 * ;
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: kilo>1 1000 * ;
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: hecto>1 100 * ;
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: deca>1 10 * ;
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: deci>1 10 / ;
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: centi>1 100 / ;
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: milli>1 1000 / ;
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: micro>1 1000000 / ;
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: nano>1 1000000000 / ;
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: pico>1 1000000000000 / ;
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: femto>1 1000000000000000 / ;
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: atto>1 1000000000000000000 / ;
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: zepto>1 1000000000000000000000 / ;
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: yocto>1 1000000000000000000000000 / ;
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! Length
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SYMBOL: m
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: (m) { m } { } <dimensioned> ;
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: m (m) ;
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: km kilo>1 (m) ;
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: cm centi>1 (m) ;
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: mm milli>1 (m) ;
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: nm nano>1 (m) ;
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! Mass
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SYMBOL: kg
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: (kg) { kg } { } <dimensioned> ;
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: kg (kg) ;
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: g milli>1 (kg) ;
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! Time
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SYMBOL: s
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: (s) { s } { } <dimensioned> ;
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: s (s) ;
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: ms milli>1 (s) ;
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! Electric current
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SYMBOL: A
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: (A) { A } { } <dimensioned> ;
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: A (A) ;
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! Temperature
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SYMBOL: K
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: (K) { K } { } <dimensioned> ;
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: K (K) ;
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! Amount of substance
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SYMBOL: mol
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: (mol) { mol } { } <dimensioned> ;
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: mol (mol) ;
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! Luminous intensity
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SYMBOL: cd
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: (cd) { cd } { } <dimensioned> ;
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: cd (cd) ;
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! SI derived units
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: m^2 { m m } { } <dimensioned> ;
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: m^3 { m m m } { } <dimensioned> ;
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: m/s { m } { s } <dimensioned> ;
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: m/s^2 { m } { s s } <dimensioned> ;
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: m^-1 { } { m } <dimensioned> ;
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: kg/m^3 { kg } { m m m } <dimensioned> ;
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: A/m^2 { A } { m m } <dimensioned> ;
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: A/m { A } { m } <dimensioned> ;
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: mol/m^3 { mol } { m m m } <dimensioned> ;
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: cd/m^2 { cd } { m m } <dimensioned> ;
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: kg/kg { kg } { kg } <dimensioned> ;
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: radian ( n -- radian ) { m } { m } <dimensioned> ;
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: sr ( n -- steradian ) { m m } { m m } <dimensioned> ;
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: Hz ( n -- hertz ) { } { s } <dimensioned> ;
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: N ( n -- newton ) { kg m } { s s } <dimensioned> ;
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: Pa ( n -- pascal ) { kg } { m s s } <dimensioned> ;
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: J ( n -- joule ) { m m kg } { s s } <dimensioned> ;
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: W ( n -- watt ) { m m kg } { s s s } <dimensioned> ;
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: C ( n -- coulomb ) { s A } { } <dimensioned> ;
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: V ( n -- volt ) { m m kg } { s s s A } <dimensioned> ;
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: F ( n -- farad ) { s s s s A A } { m m kg } <dimensioned> ;
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: ohm ( n -- ohm ) { m m kg } { s s s A A } <dimensioned> ;
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: S ( n -- siemens ) { s s s A A } { m m kg } <dimensioned> ;
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: Wb ( n - weber ) { m m kg } { s s A } <dimensioned> ;
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: T ( n -- tesla ) { kg } { s s A } <dimensioned> ;
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: H ( n -- henry ) { m m kg } { s s A A } <dimensioned> ;
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: deg-C ( n -- Celsius ) 273.15 + { K } { } <dimensioned> ;
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: lm ( n -- lumen ) { m m cd } { m m } <dimensioned> ;
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: lx ( n -- lux ) { m m cd } { m m m m } <dimensioned> ;
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: Bq ( n -- becquerel ) { } { s } <dimensioned> ;
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: Gy ( n -- gray ) { m m } { s s } <dimensioned> ;
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: Sv ( n -- sievert ) { m m } { s s } <dimensioned> ;
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: kat ( n -- katal ) { mol } { s } <dimensioned> ;
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! Extensions to the SI
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: minutes ( n -- minute ) 60 * s ;
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: hours ( n -- hour ) 3600 * s ;
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: month 2629743.83 * s ;
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: day 86400 * s ;
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: year 31556926 * s ;
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: arc-deg pi 180 / * radian ;
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: arc-min pi 10800 / * radian ;
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: arc-sec pi 648000 / * radian ;
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: L ( n -- liter ) 1/1000 * m^3 ;
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: t ( n -- metric-ton ) 1000 * kg ;
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: Np ( n -- neper ) { } { } <dimensioned> ;
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: B ( n -- bel ) 1.151292546497023 * Np ;
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: eV ( n -- electronvolt ) 1.60218e-19 * J ;
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: u ( n -- unified-atomic-mass-unit ) 1.66054e-27 * kg ;
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: ua ( n -- astronomical-unit ) 149598000000 * m ;
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: nautical-mile 1852 * m ;
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: knot 1852/3600 * m/s ;
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: a ( n -- are )100 * m^2 ;
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: ha ( n -- hectare ) 10000 * m^2 ;
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: bar ( n -- bar ) 100000 * Pa ;
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: angstrom .1 * nm ;
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: b ( n -- barn ) 1/10000000000000000000000000000 * m^2 ;
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: Ci ( n -- curie ) 37000000000 * Bq ;
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: R 0.000258 { s A } { kg } <dimensioned> ;
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: rad .01 * Gy ;
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: rem .01 * Sv ;
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