| S21BAF | Degenerate symmetrised elliptic integral of 1st kind RC(x,y) |
| S21BBF | Symmetrised elliptic integral of 1st kind RF(x,y,z) |
| S21BCF | Symmetrised elliptic integral of 2nd kind RD(x,y,z) |
| S21BDF | Symmetrised elliptic integral of 3rd kind RJ(x,y,z,r) |
| S21DAF | General elliptic integral of 2nd kind F(z,k',a,b) of complex argument |