| 1 | / |
| 2 | / C L O G |
| 3 | / - - - - |
| 4 | / |
| 5 | / VERSION 5A 4-27-77 PT |
| 6 | / |
| 7 | /COMPLEX LOG ROUTINE |
| 8 | / |
| 9 | /ENTER + EXIT IN COMPLEX |
| 10 | / |
| 11 | /Z=X+IY |
| 12 | /LOG(Z)=LOG(ABS(Z))+I*THETA |
| 13 | /ABS(Z)=SQRT(X*X+Y*Y) |
| 14 | /THETA=ATAN(Y/X) |
| 15 | / |
| 16 | /CALLS REAL SQRT,LOG,ATAN2 |
| 17 | / |
| 18 | SECT CLOG |
| 19 | JA #CLOG |
| 20 | DPCHK |
| 21 | TEXT +CLOG + |
| 22 | CLOGXR, SETX XR |
| 23 | SETB BP |
| 24 | JA .+3 |
| 25 | BP, F 0.0 |
| 26 | XR, F 0.0 |
| 27 | F 0.0 |
| 28 | ARG, F 0.0 |
| 29 | F 0.0 |
| 30 | ORG 10*3+BP |
| 31 | FNOP |
| 32 | JA CLOGXR |
| 33 | 0 |
| 34 | RT, JA . |
| 35 | BASE 0 |
| 36 | #CLOG, STARTD |
| 37 | FLDA 10*3 |
| 38 | FSTA RT |
| 39 | FLDA 0 |
| 40 | SETB BP |
| 41 | SETX XR |
| 42 | BASE BP |
| 43 | LDX 1,1 |
| 44 | FSTA BP |
| 45 | FLDA% BP,1 |
| 46 | FSTA BP |
| 47 | STARTE |
| 48 | FLDA% BP |
| 49 | FSTA ARG |
| 50 | STARTF |
| 51 | EXTERN ATAN2 |
| 52 | JSR ATAN2 |
| 53 | JA CL1 |
| 54 | JA ARG+3 /ATAN(Y/X) |
| 55 | JA ARG |
| 56 | CL1, FSTA ETEMP |
| 57 | FLDA ARG |
| 58 | FMULM ARG |
| 59 | FLDA ARG+3 |
| 60 | FMUL ARG+3 /X*X+Y*Y |
| 61 | FADD ARG |
| 62 | FSTA ARG |
| 63 | EXTERN SQRT |
| 64 | JSR SQRT /TAKE SQRT |
| 65 | JA CL2 |
| 66 | JA ARG |
| 67 | CL2, FSTA ARG |
| 68 | EXTERN ALOG /ALOG(ABS(Z)) |
| 69 | JSR ALOG |
| 70 | JA CL3 |
| 71 | JA ARG |
| 72 | CL3, FSTA ARG /REAL PART |
| 73 | FLDA ETEMP /IMAGINARY PART |
| 74 | FSTA ARG+3 |
| 75 | STARTE |
| 76 | FLDA ARG |
| 77 | FSTA #CAC |
| 78 | JA RT |
| 79 | EXTERN #CAC |
| 80 | ETEMP, F 0.0 |
| 81 | \f |