Hace unos días, decidí asumir el pequeño proyecto de convertir un programa Qbasic en Python (como un proyecto paralelo a mi proyecto Radio Jove), y logré hacerlo funcionar, pero las matemáticas definitivamente no funcionan. Esperaba que un colega astrónomo o astrofísico me ayudara en el aspecto matemático de mi código Python. Obviamente, algo anda mal con el aspecto matemático del código, ya que la mayoría de los valores en el programa Python están muy sesgados. Mis disculpas de antemano por las variables de un solo carácter. Los haría mejores si supiera todo lo que sucede.
Código Qbasic:
'Program to flag Jovian Decametric windows
m$ = "JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC"
wi = 42.46 / 360
pi = 3.141593
kr = pi / 180
f$ = "### \ \ ## ##.# ### ### ##.## \ \"
OPEN "jovrad.txt" FOR OUTPUT AS #1
INPUT "Year for which predictions are required"; yy
e = INT((yy - 1) / 100)
f = 2 - e + INT(e / 4)
jd = INT(365.25 * (yy - 1)) + 1721423 + f + .5
d0 = jd - 2435108
incr = 0
IF yy / 400 - INT(yy / 400) = 0 THEN incr = 1
yyly = yy / 4 - INT(yy / 4)
yylc = yy / 100 - INT(yy / 100)
IF yyly = 0 AND yylc <> 0 THEN incr = 1
ty = 59 + incr
dmax = 365 + incr
tx = ty + .5
PRINT #1, "******************************************************"
PRINT #1, " JOVIAN IO-DECAMETRIC EMISSION PREDICTIONS FOR"; yy
PRINT #1, "******************************************************"
PRINT #1,
PRINT #1, "Day Date Hr(UT) Io_Phase CML Dist(AU) Source"
PRINT #1,
th = 0
DO
GOSUB Compute
s$ = ""
IF L3 < 255 AND L3 > 200 AND U1 < 250 AND U1 > 220 THEN s$ = "Io-A"
IF L3 < 180 AND L3 > 105 AND U1 < 100 AND U1 > 80 THEN s$ = "Io-B"
IF L3 < 350 AND L3 > 300 AND U1 < 250 AND U1 > 230 THEN s$ = "Io-C"
IF s$ <> "" THEN GOSUB Outdat
th = th + .5
LOOP UNTIL INT(th / 24) + 1 > dmax
PRINT "Program completed - results in file JOVRAD.TXT"
END
Compute:
d = d0 + th / 24
v = (157.0456 + .0011159# * d) MOD 360
m = (357.2148 + .9856003# * d) MOD 360
n = (94.3455 + .0830853# * d + .33 * SIN(kr * v)) MOD 360
j = (351.4266 + .9025179# * d - .33 * SIN(kr * v)) MOD 360
a = 1.916 * SIN(kr * m) + .02 * SIN(kr * 2 * m)
b = 5.552 * SIN(kr * n) + .167 * SIN(kr * 2 * n)
k = j + a - b
r = 1.00014 - .01672 * COS(kr * m) - .00014 * COS(kr * 2 * m)
re = 5.20867 - .25192 * COS(kr * n) - .0061 * COS(kr * 2 * n)
dt = SQR(re * re + r * r - 2 * re * r * COS(kr * k))
sp = r * SIN(kr * k) / dt
ps = sp / .017452
dl = d - dt / 173
pb = ps - b
xi = 150.4529 * INT(dl) + 870.4529 * (dl - INT(dl))
L3 = (274.319 + pb + xi + .01016 * 51) MOD 360
U1 = 101.5265 + 203.405863# * dl + pb
U2 = 67.81114 + 101.291632# * dl + pb
z = (2 * (U1 - U2)) MOD 360
U1 = U1 + .472 * SIN(kr * z)
U1 = (U1 + 180) MOD 360
RETURN
Outdat:
dy = INT(th / 24) + 1
h = th - (dy - 1) * 24
IF dy > ty THEN
m = INT((dy - tx) / 30.6) + 3
da = dy - ty - INT((m - 3) * 30.6 + .5)
ELSE
m = INT((dy - 1) / 31) + 1
da = dy - (m - 1) * 31
END IF
mn$ = MID$(m$, (m - 1) * 3 + 1, 3)
PRINT #1, USING f$; dy; mn$; da; h; U1; L3; dt; s$
RETURN
Salida de muestra:
******************************************************
JOVIAN IO-DECAMETRIC EMISSION PREDICTIONS FOR 1994
******************************************************
Day Date Hr(UT) Io_Phase CML Dist(AU) Source
4 JAN 4 11.0 228 205 5.81 Io-A
4 JAN 4 11.5 233 224 5.81 Io-A
4 JAN 4 12.0 237 242 5.81 Io-A
6 JAN 6 6.0 233 325 5.78 Io-C
6 JAN 6 6.5 237 343 5.78 Io-C
7 JAN 7 6.5 81 133 5.76 Io-B
7 JAN 7 7.0 86 152 5.76 Io-B
7 JAN 7 7.5 90 170 5.76 Io-B
9 JAN 9 20.0 241 203 5.73 Io-A
9 JAN 9 20.5 246 222 5.73 Io-A
11 JAN 11 12.5 225 232 5.70 Io-A
11 JAN 11 13.0 229 251 5.70 Io-A
11 JAN 11 14.5 242 305 5.70 Io-C
11 JAN 11 15.0 246 323 5.70 Io-C
12 JAN 12 15.0 90 113 5.68 Io-B
12 JAN 12 15.5 94 131 5.68 Io-B
12 JAN 12 16.0 98 150 5.68 Io-B
14 JAN 14 8.5 82 179 5.66 Io-B
16 JAN 16 21.0 234 214 5.61 Io-A
16 JAN 16 21.5 238 232 5.61 Io-A
16 JAN 16 22.0 242 250 5.61 Io-A
18 JAN 18 15.5 234 315 5.59 Io-C
18 JAN 18 16.0 238 333 5.59 Io-C
19 JAN 19 16.0 82 124 5.57 Io-B
19 JAN 19 16.5 86 142 5.57 Io-B
19 JAN 19 17.0 91 160 5.57 Io-B
19 JAN 19 17.5 95 178 5.57 Io-B
código pitón:
#!/usr/bin/env python
from __future__ import print_function, division
import math
print('Program to flag Jovian Decametric windows')
month = ['JAN','FEB','MAR','APR','MAY','JUN','JUL','AUG','SEP','OCT','NOV','DEC']
week = 42.46/360
pi = 3.141593
kr = pi / 180
form = "### \ \ ## ##.# ### ### ##.## \ \\"
num1 = open('jovrad.txt', 'w')
yy = int(raw_input(("Year for which predictions are required ")))
e = math.trunc(((yy-1) / 100))
f = 2 - e + math.trunc(e/4)
jd = math.trunc(365.25 * (yy - 1)) + 1721423 + f + .5
d0 = jd - 2435108
incr = 0
dmax = 0
tx = 0
ty = 0
yyly = 0
yylc = 0
if yy / 400 - math.trunc((yy / 400)) == 0:
incr = 1
yyly = yy / 4 - math.trunc((yy / 4))
yylc = yy / 100 - math.trunc((yy / 100))
if yyly == 0 and yylc != 0:
incr = 1
ty = 59 + incr
dmax = 365 + incr
tx = ty + .5
print("******************************************************", file=num1)
print(" JOVIAN IO-DECAMETRIC EMISSION PREDICTIONS FOR ",yy, file=num1)
print("******************************************************", file=num1)
print("\n", file=num1)
print("Day Date Hr(UT) Io_Phase CML Dist(AU) Source", file=num1)
print("\n", file=num1)
th = 0
def compute(d0, th, dmax):
global U1, L3, dt, s
d = d0 + math.trunc(th / 24)
v = (157.0456 + .0011159 * d) % 360
m = (357.2148 + .9856003 * d) % 360
n = (94.3455 + .0830853 * d + .33 * math.sin(kr * v)) % 360
j = (351.4266 + .9025179 * d - .33 * math.sin(kr * v)) % 360
a = 1.916 * math.sin(kr * m) + .02 * math.sin(kr * 2 * m)
b = 5.552 * math.sin(kr * n) + .167 * math.sin(kr * 2 * n)
k = j + a - b
r = 1.00014 - .01672 * math.cos(kr * m) - .00014 * math.cos(kr * 2 * m)
re = 5.20867 - .25192 * math.cos(kr * n) - .0061 * math.cos(kr * 2 * n)
dt = math.sqrt(re * re + r * r - 2 * re * r * math.cos(kr * k))
sp = r * math.sin(kr * k) / dt
ps = sp / .017452
dl = d - dt / 173
pb = ps - b
xi = 150.4529 * math.trunc((dl)) + 870.4529 * (dl - math.trunc((dl)))
L3 = (274.319 + pb + xi + .01016 * 51) % 360
U1 = 101.5265 + 203.405863 * dl + pb
U2 = 67.81114 + 101.291632 * dl + pb
z = (2 * (U1 - U2)) % 360
U1 = U1 + .472 * math.sin(kr * z)
U1 = (U1 + 180) % 360
s = ""
while math.trunc(th / 24) + 1 < dmax and math.trunc(th / 24) + 1 == dmax:
if L3 < 255 and L3 > 200 and U1 < 250 and U1 > 220:
s = "Io-A"
if L3 < 180 and L3 > 105 and U1 < 100 and U1 > 80:
s = "Io-B"
if L3 < 350 and L3 > 300 and U1 < 250 and U1 > 230:
s = "Io-C"
if s != "":
outdat()
th = th + .5
print("Program completed - results in file JOVRAD.TXT", file=num1)
compute(d0, th, dmax)
def outdat(th,tx,ty):
dy = math.trunc((th / 24)) + 1
h = th - (dy - 1) * 24
if(dy > th):
m = math.trunc((dy - tx) / 30.6) + 3
da = dy - ty - math.trunc((m - 3) * 30.6 + .5)
else:
m = math.trunc((dy - 1) / 31) + 1
da = dy - (m - 1) * 31
mn = month[(m-1)*3+1:(m-1)*3-1+3]
print(dy, mn, da, h, U1, L3, dt, s, file=num1)
outdat(th,tx,ty)
Mi salida actual:
******************************************************
JOVIAN IO-DECAMETRIC EMISSION PREDICTIONS FOR 1998
******************************************************
Day Date Hr(UT) Io_Phase CML Dist(AU) Source
-12.9775 1.0 ['AUG'] -0.5 0.0 135.325782651 10.6054462674 5.7071322535
Hubo algunos otros pequeños errores en su traducción (como sangrar demasiadas cosas en dos de las if
declaraciones), y creo que podría haber estado tratando de ser demasiado inteligente al cambiar SUBROUTINE
a funciones definidas cuando era mucho más fácil simplemente eliminar el código en línea ya que solo se usó una vez.
Hubo ajustes menores y, por lo que sé, esto parece funcionar (querrá jugar con la impresión formateada para limpiarla, y esto se ejecuta en Python 3; si necesita que se ejecute en Python 2, usted ' Probablemente necesite cambiar las declaraciones print
y num1.write
):
#!/usr/bin/env python
import math
print('Program to flag Jovian Decametric windows')
month = ['JAN','FEB','MAR','APR','MAY','JUN','JUL','AUG','SEP','OCT','NOV','DEC']
week = 42.46/360
pi = 3.141593
kr = pi / 180
num1 = open('jovrad.txt', 'w')
yy = int(input(("Year for which predictions are required ")))
e = math.trunc(((yy-1) / 100))
print(e)
f = 2 - e + math.trunc(e/4)
print(f)
jd = math.trunc(365.25 * (yy - 1)) + 1721423 + f + .5
print(jd)
d0 = jd - 2435108
print(d0)
incr = 0
dmax = 0
tx = 0
ty = 0
yyly = 0
yylc = 0
if yy / 400 - math.trunc((yy / 400)) == 0:
incr = 1
print("in if-1")
yyly = yy / 4 - math.trunc((yy / 4))
yylc = yy / 100 - math.trunc((yy / 100))
if yyly == 0 and yylc != 0:
print("in if-2")
incr = 1
ty = 59 + incr
dmax = 365 + incr
tx = ty + .5
num1.write("******************************************************\n")
pout = " JOVIAN IO-DECAMETRIC EMISSION PREDICTIONS FOR " + str(yy) + "\n"
num1.write(pout)
num1.write("******************************************************\n")
num1.write("\n")
num1.write("Day Date Hr(UT) Io_Phase CML Dist(AU) Source")
num1.write("\n")
th = 0
while int(th / 24) + 1 <= dmax:
d = d0 + (th / 24)
v = (157.0456 + .0011159 * d) % 360
m = (357.2148 + .9856003 * d) % 360
n = (94.3455 + .0830853 * d + .33 * math.sin(kr * v)) % 360
j = (351.4266 + .9025179 * d - .33 * math.sin(kr * v)) % 360
a = 1.916 * math.sin(kr * m) + .02 * math.sin(kr * 2 * m)
b = 5.552 * math.sin(kr * n) + .167 * math.sin(kr * 2 * n)
k = j + a - b
r = 1.00014 - .01672 * math.cos(kr * m) - .00014 * math.cos(kr * 2 * m)
re = 5.20867 - .25192 * math.cos(kr * n) - .0061 * math.cos(kr * 2 * n)
dt = math.sqrt(re * re + r * r - 2 * re * r * math.cos(kr * k))
sp = r * math.sin(kr * k) / dt
ps = sp / .017452
dl = d - dt / 173
pb = ps - b
xi = 150.4529 * math.trunc((dl)) + 870.4529 * (dl - math.trunc((dl)))
L3 = (274.319 + pb + xi + .01016 * 51) % 360
U1 = 101.5265 + 203.405863 * dl + pb
U2 = 67.81114 + 101.291632 * dl + pb
z = (2 * (U1 - U2)) % 360
U1 = U1 + .472 * math.sin(kr * z)
U1 = (U1 + 180) % 360
s = ""
if L3 < 255 and L3 > 200 and U1 < 250 and U1 > 220:
s = "Io-A"
if L3 < 180 and L3 > 105 and U1 < 100 and U1 > 80:
s = "Io-B"
if L3 < 350 and L3 > 300 and U1 < 250 and U1 > 230:
s = "Io-C"
if s != "":
dy = math.trunc((th / 24)) + 1
h = th - (dy - 1) * 24
if(dy > th):
m = math.trunc((dy - tx) / 30.6) + 3
da = dy - ty - math.trunc((m - 3) * 30.6 + .5)
else:
m = math.trunc((dy - 1) / 31) + 1
da = dy - (m - 1) * 31
mn = month[(m-1)]
# mn = month[(m-1)*3+1:(m-1)*3-1+3]
outstring = "%i %s %i %5.3f %5.3f %5.3f %5.3f %s\n" % (dy, mn, da, h, U1, L3, dt, s)
num1.write(outstring)
th = th + .5
num1.close()
print("Program Complete - results in file JOVRAD.TXT")
skytux
numpy
? Entonces tendrás todas las funciones matemáticas, comonp.pi
,np.sin()
y mucho más.Macusuario
skytux
Macusuario
skytux
Macusuario
Eubie dibujó
Conrado Turner
dave
Macusuario
Macusuario
Macusuario