这个函数在x小于0时,取x的平方作为函数值;在x大于等于0时,则取2x+1作为函数值。 分段函数的性质 分段函数具有一些独特的性质,这些性质使得它们在数学分析和实际应用中显得尤为重要。首先,分段函数在每个区间内都是连续的,但在区间分界点处可能不连续。这种不连续性是分段函数的一个...
表达式1: "y" equals left brace, negative 2 less than "x" less than 2 : abs left parenthesis, "x" , right parenthesis minus 1 , right bracey=−2<x<2:absx−1 1 表达式2: "y" equals left brace, negative 2 less than "x" less than 0 : negative 1 half "x" squared minus "...
例2:求y=|x+1|+|2x-3|的值。 分析:由|x+1|=0,知x=-1。这个"-1"就是一个分段点;同理|2x-3|=0,得x=3/2。这个"3/2"又是一个分段点。这样,函数y就有两个分段点,这在数轴上就分成了三部分:从左往右有,小于-1部分,大于-1且小于3/2部分,大于3/2部分。再考虑到那两个分段点,共分五种...
elseifx>=-1&x<0 f(i)=-3*x.^2+x; elseifx>=0&x<pi f(i)=sin(x)+x; else f(i)=pi; end i=i+1; end f 下面我们使用匿名函数构建分段函数,它可以直接进行微分、积分、画图, 我们可以如下编辑函数 fun=@(x)0.*(x<-1)+(-3*x.^2+x).*(x>=-1&x<0)+(sin(x)+x).*(x ...
Because of the piecewise function definition, different types of functions may need to be examined for their domain because of the segmentation of the values of x. The domain on one interval of the piecewise function may have a different domain than the second piece of the function. Examine ...
double value = function->GetValue(x); 其中x为要求值的位置。 8.设置插值方式: c++ function->SetInterpolationTypeToLinear(); 或者 c++ function->SetInterpolationTypeToNearest(); 其中SetInterpolationTypeToLinear()表示线性插值,SetInterpolationTypeToNearest()表示最近邻插值。 9.序列化vtkPiecewiseFunction: ...
A piecewise function is a function that is defined on a sequence of intervals. A common example is the absolute value, |x|={-x for x<0; 0 for x=0; x for x>0. (1) Piecewise functions are implemented in the Wolfram Language as Piecewise[{{val1, c
1-5. 2 Consider the piecewise defined function x2 +1 if x < 0 f(x) = cos(x) if 0 < x < 3 X-4 if x > 3 = 1. Find Limx-0-f(x) and Limx-50+f(x) 2. Is f continuous at x = 0 ? 3. Find Limx-3-f(x) and ...
f(x)={2if −3≤x<−13if −1≤x≤44. Sketch the graph of the piecewise-defined function: f(x)={−1if −4<x<−22if −2≤x≤25. Select the correct graph of the piecewise-defined function: f(x)={1if −3≤x≤2−1if 2<x<46...
if(x<-pi) y=-1; elseif(x>=-pi&x<=pi) y=cos(x); else(x>pi) y=-1; plot(x,y) end This is what I'm getting: The middle part (cosine function) is wrong. I was told it's just graphing the part after else. Help please?