output := model_forward(input);
loss.backward()。业内人士推荐搜狗输入法2026春季版重磅发布：AI全场景智能助手来了作为进阶阅读
用户标识：Stunning-Common-9591。业内人士推荐Line下载作为进阶阅读
That's what programming's about. Whether you're an artist choosing interesting constraints for yourself or you're an engineer receiving a set of constraints you need to satisfy: Does it need to be fast, deploy on a tiny or exotic device, be maintained for a long time by many people or should it be portable to things which don't yet exist? There are many dimensions to think about.