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August 29, 2015 14:10
Daily Programmer #190 Hard
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include mini-oof.fs | |
: 2fdup ( f1 f2 -- f1 f2 f1 f2 ) fover fover ; | |
: -frot ( f1 f2 f3 -- f3 f1 f2 ) frot frot ; | |
: 2f/ ( f1 f2 f3 f4 -- f1/f3 f2/f4 ) | |
frot fswap f/ -frot f/ fswap ; | |
object class | |
method init | |
method conjugate | |
method modulus | |
method complex>string | |
float% field real | |
float% field imag | |
end-class complex | |
:noname ( r i -- ) dup imag f! real f! ; complex defines init | |
:noname ( -- c ) | |
dup real f@ imag f@ -1e f* | |
complex new dup init ; complex defines conjugate | |
:noname ( -- f ) | |
dup | |
real f@ fdup f* | |
imag f@ fdup f* | |
f+ fsqrt ; complex defines modulus | |
: 2real ( c1 c2 -- f1 f2 ) real f@ real f@ fswap ; | |
: 2imag ( c1 c2 -- f1 f2 ) imag f@ imag f@ fswap ; | |
: complex+ ( c c -- c ) | |
2dup 2real f+ 2imag f+ | |
complex new dup init ; | |
: complex- ( c c -- c ) | |
2dup 2real f- 2imag f- | |
complex new dup init ; | |
: complex* ( c c -- c ) | |
2dup 2real f* 2dup 2imag f* f- | |
2dup real f@ imag f@ f* imag f@ real f@ f* f+ | |
complex new dup init ; | |
: complex/ ( c c -- c ) | |
tuck conjugate complex* | |
dup real f@ imag f@ | |
modulus fdup f* fdup 2f/ | |
complex new dup init ; | |
complex new constant t1 | |
complex new constant t2 | |
3e 5e t1 init | |
8e -1e t2 init | |
: complex. ( c -- ) | |
dup real f@ f. imag f@ f. ; | |
." + " t1 t2 complex+ complex. cr | |
." - " t1 t2 complex- complex. cr | |
." * " t1 t2 complex* complex. cr | |
." / " t1 t2 complex/ complex. cr | |
." modulo " t1 modulus f. cr | |
bye |
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