News about the new Enigma album

March 10th 2006 is the new date for “Hello and Welcome” – New Studio Album 2006!!
Enigma - Hello and Welcome The new Enigma Single called: “Hello and Welcome” has now been rescheduled for release on March 10 2006, the day before the boxing match with German boxing champ Felix Strum. The track and remixes can be purchased and
Enigma management also announces……
“The NEW Enigma album will be released by the end of 2006”
Sehr wunderbar

曲线形态的讨论

曲线形态的讨论:
 
1.单调性
若函数y=f(x)的导函数f'(x)>=0且在任一个有限区间内最多只有有限多个零点,则y=f(x)单调上升;若函数y=f(x)的导函数f'(x)<=0且在任何一个有限区间内最多只有有限多个零点,则y=f(x)单调下降.
 
 

Mathematik

连续:
 
      原始定义  lim(Delta x->0) Delta y = 0    增量趋零啊增量趋零
      扩展定义  lim(x->x0) f(x) = f(x0)          极限取得到x0函数值
 
 
可导:
 
      原始定义  lim(Delta x->0)   Delta y/Delta x = f'(x)  即
                    lim(Delta x->0) f(x0+Delta x) – f(x0)]/Delta x = f'(x)
      或者        lim(h->0) [f(x0+h)-f(x0)]/h = f'(x)
      还有        lim(x->x0) [f(x)-f(x0)]/(x-x0) =f'(x)

Where are you?