Trendline Due to technical cytometric analysis of price trends based on the assumption, so using the trend line is important for trend identification and confirmation. A trend line is a straight line that connects two or more price points and then extends to the future to act as a support or resistance line. Many principles that apply to support and resistance levels can also be applied to trend lines. Before you continue, you must understand our " support and resistance " article intermediaries all the concepts Shao.Upward trend lineAn upward trend line has a positive slope and is formed by connecting two or more low points. The second low must be higher than the first low for the line to have a positive slope. Note that at least three points must be connected before the line can be considered a valid trend line.The upward trend line plays a supporting role, indicating that even if prices increase, net demand (supply with reduced demand) is increasing. The price increase combined with the increase in demand is very optimistic and shows the firm determination of buyers. As long as the price stays above the trend line, the upward trend is considered solid and complete. If it falls below the rising trend line, it indicates that net demand has weakened and the trend may be about to change. Decline trend lineThe downtrend line has a negative slope and is formed by connecting two or more high points. The second high must be lower than the first high for the line to have a negative slope. Note that at least three points must be connected before the line can be considered a valid trend line.The downward trend line is resistance, indicating that even if prices fall, net supply (supply with reduced demand) is increasing. Prices plus altar should be increased, which is very bearish, and shows strong determination seller. As long as the price stays below the downtrend line, the downtrend is firm and complete. If it breaks below the downward trend line, it indicates that the net supply is decreasing and the trend is about to come.For a detailed description of trend changes, unlike trend line breaks, please refer to the article on Dow Jones theory.Scale settingWhen displaying prices on a semi- logarithmic scale, the highs and lows seem to fit the trend line better. This is especially true when drawing long-term trend lines or large changes in prices. Most drawing programs allow the user to set the scale to arithmetic or semi-logarithmic. When the arithmetic ruler moves up on the y- axis, the increment value ( 5,10,15,20,25,30 ) will be displayed uniformly . $ 10 price changes from $ 10 to $ 20 , or from $ 100 to $ 110 looks the same. The semi-logarithmic scale displays the incremental value expressed as a percentage when the percentage value moves up the y axis. An increase from US$ 10 to US$ 20 is a 100 % gain, which seems to be much larger than an increase from US$ 100 to US$ 110 ( only 10 % gain).

写那麽多 我根本看不懂