The second chapter Cartesian standard 3D mathematics contains all 3D spaces, distance, and precise perspectives. The most frequently used framework is called the Cartesian standard. Cartesi Mathematics is named in Rayne. Cartesi name, he is a very talented French philosopher, physicist, physiologist and mathematician. Born in 1596, died in 1650. Cartesi is not only It is known for the invention. And Cartesian mathematics is also a great theory of unity of geometries and algebras. Different Cartesi also answers this question because of the rightness of the matter. I know the name. This issue makes several generations of philosophers who are fascinated, and do not have to fall into the dilemma of dead sheep (it will become the central feature of the next section), unless you really want it to fall. Ancient Greeks Interpretation is ethos (because I later said you), Pathos (because it is good) and logos (because it can feel), but Diqi refutes their answers, then he uses pencils and paper to put his Idea depicts .2.1 1D Math You Read this book because you want to know 3D mathematics knowledge, so you may want to know why we have to talk about 1D mathematics. Very good, now we have two before entering the 3D world The problem needs to be resolved, one is a digital system, one is counting. Natural number is usually called a number, it is invented by thousands of years ago, maybe it retains the trace of the concept of Dead sheep. The concept of a sheep is very Easy to express, however, two sheep, three sheep? People soon convinced that they need to spend a lot of work, so they gave up counting in some quantity, change and always use a lot of sheep. Different cultures The count will be waived in different quantities, depending on their endurance. In the end, civilization will develop to us to let everyone think about the number, not more such as killing sheep, eating sheep. Survive Mission. Those witnesses make zero concept names. When they know that they can't name all the natural numbers, they create a variety of systems, use these systems, they can nam any natural number directly, For example, "1", "2" and other numbers (or you can also use Roman numbers, "M", "X", "I", etc.). Mathematics is actually the birth. In order to make the sheep, we have it. This habit leads to the generation of Number Line concept. The one line is divided into pieces of rules, as shown in Figure 2.2.
