| Symbol | Description | Uses |
| SIN1 | 3 |
| File | Line number | Procedure | Code |
| ./pkg/sphere/sphere.F | 402 | SHC4ZONE |
REAL XLAT, SIN0, SIN1, SIN2, SCALE |
| ./pkg/sphere/sphere.F | 419 | SHC4ZONE |
SIN1 = SIN(AMAX1(-90.0,XLAT1)*DEG2RAD) |
| ./pkg/sphere/sphere.F | 421 | SHC4ZONE |
SCALE = (SIN2 - SIN1)*0.25 |