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}]
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}]
举一反三
- 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}]
- 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]
- 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}]
- 画抛物柱面[img=51x26]180307326eca386.png[/img],画图区域: [img=260x25]1803073277226f9.png[/img] A: ContourPlot3D[x=y^2,{x,-6,6},{y,-3,3},{z,-5,5}] B: ContourPlot3D[x=y^2,{y,-3,3},{z,-5,5},{x,-6,6}] C: ContourPlot3D[x==y^2,{x,-6,6},{y,-3,3},{z,-5,5}] D: ContourPlot3D[x==y^2,{y,-3,3},{z,-5,5},{x,-6,6}]
- 若有int x,y,z;,则执行以下程序段后的输出结果为:x=1;y=3;z=5;if(x>;y)x=y;y=z;printf("x=%d,y=%d,z=%d",x,y,z); A: x=1,y=5,z=5 B: x=1,y=3,z=3 C: x=5,y=3,z=5 D: x=5,y=3,z=3