Lecture _2_

Throughout the whole history of architecture, the concept of harmony has been the subject of many studies and long-lasting discussions.
Harmony may be defined as a symmetry between parts, the result of the composition (or the division) of a whole into consonant parts.
Its ancient link with music, where ‘agreeable’ combinations of sounds can be read as mathematical relationships, seems to seal the connection between harmony and mathematics. In art and architecture, however, this correspondence is not easily described. Although it is undeniable that a link between architecture and geometry (and therefore mathematics in general) exists, in different periods the nature of this connection has been identified and judged in different ways.
? Today our lecture concerns with the following axis:

The first point is an access to historical architecture through Harmony and proportions in architecture.
Secondly we study historical architecture logically by revival Pythagorean doctrine.
The third point mathematics can have been language-access types in architecture.
The fourth point which I would like to say there are many methods in the analysis of types of historical architecture by the mathematic.
Finally, the architecture can be easily understood in many ways if its structure is analyzed in logical ways and in mathematical language.