| Name | Symbol | Value |
| Euler's constant | g | 0.577215664901532... |
| golden ratio | f | 1.618033988749894... |
| natural log base | e | 2.718281828459045... |
| pi | p | 3.14159265358979323846264... |
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Glossary
Essentials of Manufacturing
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Metal 3D Printing Design Guide
Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.