This question is intended to see what information you were able to extract from the definitions. The given example isn't syntactically correct because of this. Algol 60 does however provide a means for disambiguating the dangling else through the use of blocks or compound statements. Explain in detail what happens in the following code when the last assignment statement is executed. Name a semantic difference between compound statements and blocks in Algol 60.
Blocks allow declarations and have a new level of nomenclature.
Compound statements do not. Scheme does not distinguish between expressions and statements. This keep the language consistent, because every expression returns a value that may be used by something else. The Scheme definition does not specify exact numbers of bits to be used to represent different data types, instead it gives a set of guidelines and recommendations to the implementors. If the integer is to be represented in the machine as a floating point number, they recommend enough bits to represent the IEEE 32 and 64 bit standards for floating point integers, also whether an integer is exact or inexact must be stored.