Examlex
Consider the grammar with the following translation rules and E as the start symbol.
E ? E1 # T { E.value = E1.value * T.value } |
T{ E.value = T.value }T ? T1 &
F { T.value = T1.value + F.value }
| F{ T.value = F.value }F ? num { F.value = num.value }
Compute E.value for the root of the parse tree for the expression: 2 # 3 & 5 # 6 & 4.
Secondary Sexual Characteristic
Physical traits that are not directly involved in reproduction but distinguish the sexes of a species, such as body hair in humans or plumage in birds.
Hermaphroditism
Reproduction in which a single individual produces both eggs and sperm.
Rhythm Method
A method of contraception based on avoiding intercourse during the period of a woman's cycle when she is most likely to conceive.
Spermicidal Foam
A contraceptive foam containing chemicals that kill sperm, inserted into the vagina before intercourse to prevent pregnancy.