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《Journal of Anhui Tv University》 2001-01
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The Properties of the Function sgnf(x) and Its Aplication

XIANG Ming-yin (Huangshan Senior College,Huangshan 245061)  
This paper discusses the concept of the function sgnf(x) and its anal ytical properties.Italso probes into the function's application in studing analy tical operation's relation of the function f(x) and |f (x)|.
【CateGory Index】: O174.1
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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2 WANG Yirui~1,SU Renquan~2(1.Department of Maths,Ankang Teachers' College;2.Ziyang High School,Ankang725300,Shaanxi,China);Single Side Derivative and the Single Side Limit of It[J];Journal of Ankang Teachers College;2005-01
3 WANG Yirui, GAO Xiaoyan (1. The Math Department, Ankng University, Ankang 725000, Shaanxi, China; 2. The Math Department, YuLin College, YuLin 719000, Shaanxi, China);The Methods to Prove the Inequality of (2x)/(π)<sinx<x, x∈(0,π/2)[J];Journal of Ankang Teachers College;2006-03
4 ZHANG Qianqiang(The math.Dept.of Chaohu College,Chaohu 238000,China);Study on the Relationship Between the Infiniteseries and Integral[J];Journal of Anqing Teachers College(Natural Science Edition);2002-04
5 QIN Yunchu (Department Mathenatics of Hechi College, Yizhou 546300,China);Continuious Function on Open Interval[J];Journal of Anqing Teachers College(Natural Science Edition);2003-04
6 FAN Shou-fang(Suihua University,Suihua 152061);The Discussion on Analysing Qualities of Lagrange Mean Value Function[J];Journal of Anqing Teachers College(Natural Science Edition);2006-02
7 ZHU Hong~1 FU Jun~21.Department of Computer,Jilin Normal University,Siping Jilin 136000,China;2.Department of Mathematics,Jilin Normal University,Siping Jilin 136000,China;On How to Foster Mathematical Character of Thinking in Mathematical Teaching[J];Journal of Anshan Normal University;2004-06
8 Xiao Hong -zhi (Scientific Research Department of Bijie College,Bijie551700,GuiZhou,China);The adhibition of magnify on differentiation of consistent convergence about function term progression[J];Journal of Anshun Teachers College;2005-03
9 ZHU Shi-huan,SONG Fu-qing (Anyang Teachers College,Anyang 455002);A New Construction Methode on Auxiliary Function[J];Journal of Anyang Teachers College;2004-02
10 WEI Lan-ge(Department of Mathematics,Baoding Teachers' College,Baoding 071051,China);Application of Differentiation in Solving Functional Equations[J];Journal of Baoding Teachers College;2001-04
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