∣∣fxx+λϕxxfxy+λϕxyϕxfxy+λϕxyfyy+λϕyyϕyϕxϕy0∣∣
det⎝⎛fxx+λϕxxfxy+λϕxyϕxfxy+λϕxyfyy+λϕyyhϕxϕyi⎠⎞=fxx+λϕxx⋅det(fyy+λϕyyϕyϕy0)−fxy+λϕxy⋅det(fxy+λϕxϕy0)+ϕx⋅det(fxy+λϕxfyy+λϕyyϕy)
[fxx+λϕxx⋅(−ϕy2)]−[fxy+λϕxy⋅(−ϕxϕy)]+[ϕx⋅(ϕy)(fxy+λxy)−(ϕy)(fyy+λyy)]
Comments
Leave a comment