API

derive1(x)
derive2(x1[, x2])
derive3(x)
Dual64	Dual number using 64-bit-floats as fields.
HyperDual64	Hyper dual number using 64-bit-floats as fields.
Dual2_64	Hyper dual number using 64-bit-floats.
Dual3_64	Hyper dual number using 64-bit-floats.