跳到0分4秒您知道Precalculus课程涵盖了许多材料实际上数字，不等式和方程式以及代数和图形和功能，您认为我们可以在那里停下来，卡洛吗？绝对不会看，我们甚至没有谈论过基本材料，例如指数增长，对数等以及trignonetry，我们如何忽略这一点？
跳到0分钟32秒trigonometry I remember my trig teacher in high school he used to hit us on the knuckles with a wooden ruler if we didn’t learn fast enough but I suspect it would be hard to improve this in an on-line course not to mention that probably it is not legal sadly, Alberto, I think you are right well, you know, times change we’ll just have to find a way to make tringonometry fun what does should be put into the course Alberto?
跳到1分2秒some geometry of the plane like circles, ellipses, parabolas things that I think are very useful for calculs later on sure, yeah polar coordinates, areas, volumes I guess well in that case I believe we’d better advise to those who are planning to take this second course to have done the previous first that make sense maybe the name of the course could be a hint about that yeah, how about calling it
跳到1分钟31秒Precalulcus：持续的传奇是的，但是看起来有点太戏剧性，弗朗西斯？为什么不预钙高级主题perfetto carlo，perfetto
