| ALGOL 68+ | ⊕ 1980 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ Netherlands | Superlanguage of ALGOL 68 |
| ALGOL(E) | ⊕ 1980 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United Kingdom | ICL Algol 60 |
| Mathsy | ⊕ 1980 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Matrix | ⊕ United States | Interactive mathematics and graphics |
| UFORT | ⊕ 1980 | ↓ ↑ ⊕ Numerical Scientific | ⊕ United States | Fortran running on the PASCAL machine |