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In order tu design properly a structure of this kind, it is necessary previously to define its shape through a mathematical function. For this reason, the first step when approaching the problem of modeling rigorously a shell is to draw a function in Autocad. 157 more words
So I guess everything I’ve ever written is…
2. unnecessary, superfluous, redundant; causeless, unreasonable,groundless, unprovoked, unjustified.
…since it is…
7 more words
1. given, done, bestowed, or obtained without charge or payment; free; voluntary.