The Golden Section (or Golden Mean) is an irrational proportion defined as a line cut in such a way that
- the ratio between the smaller section to the greater - equals the ratio of the greater section to the whole line
The Golden Section can be expressed like
AB / BC = BC / AC (1)
The ratio of the two lengths is called phi - Φ = 1.618
2D and 3D engineering drawing tools.
Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.
Commonly used blueprint drawing scales.
Standard metric drawing sheet sizes.
ISO 216 A, B and C drawing series - dimensions of regular, oversized and envelope sheets.
US architectural drawing sizes and formats.
US engineering drawing sizes based on ANSI/ASME Y14.1.