<u>CAD- Computer-aided design,</u> A software that helps a professional to enhance and develop the technical side of the project. As each project is of very sensitive nature, there must be a simulation to know and to improve the technical bases of the project.
Explanation:
Mathematician's foundation:
As the mathematical foundation of the CAD includes mostly the classical mathematics as there is a deep rooted structure of algebraic and differential geometry, analysis, and are basically the mathematical formulations are there to enhance the possibility for the professionals to improve on the technical side of the design and of the over all project under consideration.
Definitely just find reference pictures on Pinterest or something (you can check out my acc my at is greenteaxbabe I have a drawing references board) And get the sizing correct in reference to everything else in the picture. Good work tho keep at it!! <3