画出函数f(x,y)=sin(xy)在区域[img=138x23]1803072d305f022.png[/img]上的去网格线、去边界框三维图形。
A: Plot3D[Sin(x y),{x,-5,5},{y,-3,3}, Mesh®None, Boxed®False]
B: Plot3D[Sin[xy],{x,-5,5},{y,-3,3}, Mesh®None]
C: Plot3D[Sin[x y],{x,-5,5},{y,-3,3},Boxed®False, Mesh®None]
D: Plot3D[Sin[x y],{x,-5,5},{y,-3,3},Boxed®False]
A: Plot3D[Sin(x y),{x,-5,5},{y,-3,3}, Mesh®None, Boxed®False]
B: Plot3D[Sin[xy],{x,-5,5},{y,-3,3}, Mesh®None]
C: Plot3D[Sin[x y],{x,-5,5},{y,-3,3},Boxed®False, Mesh®None]
D: Plot3D[Sin[x y],{x,-5,5},{y,-3,3},Boxed®False]
举一反三
- 画出函数[img=132x25]18030732bf1c7f0.png[/img]在区域[img=169x25]18030732c84406b.png[/img]上的三维图形 A: Plot3D[Sin(x y),{x,-5,5},{y,-3,3}] B: Plot3D[Sin[xy],{x,-5,5},{y,-3,3}] C: Plot3D[Sin[x y],{x,-5,5},{y,-3,3}] D: Plot[Sin[x y],{x,-5,5},{y,-3,3}]
- 画出函数[img=132x25]17de912472ce3b3.png[/img]在区域[img=169x25]17de9124829b726.png[/img]上的三维图形 A: Plot3D[Sin(x y),{x,-5,5},{y,-3,3}] B: Plot3D[Sin[xy],{x,-5,5},{y,-3,3}] C: Plot3D[Sin[x y],{x,-5,5},{y,-3,3}] D: Plot[Sin[x y],{x,-5,5},{y,-3,3}]
- 设置选项让曲面透明和无边界框去观察马鞍面(双曲抛物面) A: Plot3D[x^2-y^2,{x,-3,3},{y,-3,3},PlotStyle→Opacity[0.2], Boxed→False] B: Plot3D[x^2-y^2,{x,-3,3},{y,-3,3},Boxed→False,PlotStyle→Opacity[0.3]] C: Plot3D[x^2-y^2,{x,-3,3},{y,-3,3},PlotStyle→Opacity[1.0],BoxRatios→{1,1,1}] D: Plot3D[x^2-y^2,{x,-3,3},{y,-3,3},BoxRatios→{1,1,1},PlotStyle→Opacity[0.25]]
- 在同一坐标系中画出函数[img=35x19]180307337c3130b.png[/img]和[img=44x19]18030733852dad7.png[/img]在区间[-5,5]的曲线。 A: Plot[Sin[x],Sin[2x],{x,-5,5}] B: Plot[{Sin[x],Sin[2x]},{x,-5,5}] C: Plot[Sin[x],Sin[2x],{x,5,-5}] D: Plot[{Sin[x],Sin[2x]},{x, 5,-5}]
- 数学表达式的VB算术表达式为（） A: Sqr(x*y^3)+Abs(Exp(x)+Sin(x)^3/(x-y)) B: Sqr(x*y^3)+Abs((Exp(x)+Sin(x)^3)/(x-y)) C: Sqr(x*y^3)+Abs(Exp(x)+Sin(x)^3/x-y) D: Sqr((x*y)^3)+Abs((Exp(x)+Sin(x)^3)/(x-y))