| s21bac | Degenerate symmetrised elliptic integral of 1st kind RC(x,y) |
| s21bbc | Symmetrised elliptic integral of 1st kind RF(x,y,z) |
| s21bcc | Symmetrised elliptic integral of 2nd kind RD(x,y,z) |
| s21bdc | Symmetrised elliptic integral of 3rd kind RJ(x,y,z,r) |
| s21bec | Elliptic integral of 1st kind, Legendre form, F(φ ∣ m) |
| s21bfc | Elliptic integral of 2nd kind, Legendre form, E (φ ∣ m) |
| s21bgc | Elliptic integral of 3rd kind, Legendre form, Π (n ; φ ∣ m) |
| s21bhc | Complete elliptic integral of 1st kind, Legendre form, K (m) |
| s21bjc | Complete elliptic integral of 2nd kind, Legendre form, E (m) |
| s21cac | Jacobian elliptic functions sn, cn and dn of real argument |
| s21cbc | Jacobian elliptic functions sn, cn and dn of complex argument |
| s21dac | Elliptic integrals of the second kind with complex arguments |