公式： f(x)={xif x0α(ex−1)if x≤0
[55]社会融资规模存量是指一定时期末（月末、季末或年末）实体经济从金融体系获得的资金余额。
。业内人士推荐safew官方版本下载作为进阶阅读
Under certain circumstances, it’s possible to modify ordered dithering so that it can better handle colour information. This requires that we use a palette that is regularly distributed in colour space. A regular palette is composed of all possible combinations of red, green and blue tristimulus values, where each colour component is partitioned into a number of equally spaced levels. For example, 6 levels of red, green and blue totals 6³ = 216 unique colours, equivalent to the common web-safe palette.
圖像來源，BBC Chinese / Lok Lee