/[ascend]/trunk/models/measures.a4l
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revision 2479 by jpye, Wed Apr 6 07:48:52 2011 UTC revision 2480 by jpye, Thu Jun 23 11:38:23 2011 UTC
# Line 450  TeV = {1e12*eV}; Line 450  TeV = {1e12*eV};
450  PeV = {1e15*eV};  PeV = {1e15*eV};
451  EeV = {1e18*eV};  EeV = {1e18*eV};
452    
453  lyr = {LIGHT_C * yr};               (*      Light-year *)  lyr = {LIGHT_C * yr}; (* Light-year *)
454    
455  oersted = {gauss/MU0};  oersted = {gauss/MU0};
456    
457  (* subtly dimensionless measures *)  (* plane angle measures *)
458    
459  radian = {rad};  radian = {rad};
   
 steradian = {sr};  
 srad = {sr};  
460  deg = {rad*1.74532925199433e-2};  deg = {rad*1.74532925199433e-2};
461  degrees = {deg};  degrees = {deg};
462  grad = {0.9*deg};  grad = {0.9*deg};
# Line 468  arcsec = {arcmin/60.0}; Line 465  arcsec = {arcmin/60.0};
465  rot = {2 * PI * rad};  rot = {2 * PI * rad};
466  RPM = {rot/minute};  RPM = {rot/minute};
467    
468    (* solid angle measures *)
469    
470    steradian = {sr};
471    srad = {sr};
472    
473  (* light quantities *)  (* light quantities *)
474    
475  candela = {cd};  candela = {cd};

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john.pye@anu.edu.au
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