Jun 16, 2019 #3 No, my answer is 0 to the directional derivative. Taking the partial derivative x’=ycos(xy) and y’=xcos(xy), then inputing the values 0 and 1. It gives x’=1 and y’=0. The last Would be to multiply with unit vector. So 1*0+0*1=0. I am just unsu...
Learn the definition of Directional derivative and browse a collection of 103 enlightening community discussions around the topic.
Since then topology optimization has undergone remarkable development with the emergence of various methods, including in chronological sequence: density-based methods [7, 184], evolutionary procedures [161, 162], bubble method [27], topological derivative [130], level-set methods [1, 84, 122, 14...
The evolutionary structural optimization (ESO) method developed by Xie and Steven (Comput Struct 49(5):885–896,162), an important branch of topology optimization, has undergone tremendous development over the past decades. Among all its variants, the convergent and mesh-independent bi-directional e...
The first derivative of a characteristic curve in a hydraulic valve is an example. In the case of a characteristic curve, a vector of data points can be constructed using random points between the minimum and maximum values Sensors 2021, 21, 5029 3 of 23 provided in the manufacturer's ...