LYF1993的博客

曲率求解Let α:I→R3\alpha:I \rightarrow R^3α:I→R3 be a regular parametrized curve(not necessarily by arc length) and let β:J→R3\beta:J\rightarrow R^3β:J→R3 be a reparametrization of α(I)\alpha(I)α(I) by the arc length s=s(t)s=s(t)s=s(t),mearusred from t0∈It_0