| # | Line 78 | Line 78 | extern char errmsg[]; /* global buffer for error me | |
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| 78 | #define tsin sin | |
| 79 | #define ttan tan | |
| 80 | #else | |
| 81 | < | extern double tcos(); /* table-based cosine approximation */ |
| 81 | > | /* table-based cosine approximation */ |
| 82 | #define tsin(x) tcos((x)-(PI/2.)) | |
| 83 | #define ttan(x) (tsin(x)/tcos(x)) | |
| 84 | #endif | |
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