Fig. 7.

Learning is successful, even with simplified training rules and experimentally realizable stiffness. (A) A sheet (13 crease) trained on the classification problem of Fig. 3, with a simplified, experimentally viable learning rule shown in C. (B) At peak training, the dynamic range of crease stiffness values is $\sim 2$, well within the ranges supported by existing shape memory polymers (red region) (30). (C) The trained sheet reaches peak accuracy of $80\%$ on test force examples (circles).