The theory of four-dimensional space was put forward by 1984. Peter Steinmeier, an American, put forward a unique new theory of observing and analyzing market price changes-market contour theory after summing up the experience of futures market for nearly 30 years. This theory involves four factors of the market: when, what price, who and what, so it is called four-dimensional space. Market contour theory takes futures and stock markets as the objects of analysis, research and observation, and provides traders with new ways of thinking and analysis. This theory breaks through the framework of traditional chart analysis and technical analysis, reflects the vertical form of market turnover on the price, and looks for the logical relationship in the market from the change of image form, thus inferring the future development direction of the market. From its theoretical conception, it is a breakthrough, but in actual combat, the different cycle stages of price should be different.

When the market of low-priced circle (the area leveled after the mid-term moving average fell) fluctuates within a narrow range of land volume and price, the mobile chip can help us measure the transaction center and transaction accumulation of low-priced circle. When the price breaks through the low price circle for the first time, the mobile chip is true when it reflects the upward movement of the price and the decline of the subsequent market. At this time, mobile chips can help find the explosion point of the market.

When the market breaks through the main uptrend again, due to the drastic change of chips and the limitation of historical attenuation coefficient of mobile chips, it can't keep up with the upward trend of prices, resulting in false precipitation of chips. By analogy, in the head of the main force, the market is mostly completed by volume shocks, and when the price breaks through the distribution range, the mobile chips can't keep up with the downward speed of the price, leading to the false upward movement of the chips.

After understanding the essence of mobile chips, we can use them dialectically: that is, use them to establish the breakthrough point of the main rising wave in the low-priced circle. Give up later and follow the market with MACD or trend line.

Wu2 198 is to judge the pressure and support level of tomorrow's market according to the four-dimensional map combined with KD index.