Which is the correct operator for power(Xy)? ( )
A: X^^y
B: X^y
C: None of the mentioned
D: X**y
A: X^^y
B: X^y
C: None of the mentioned
D: X**y
举一反三
- Which is the correct operator for power(Xy)? ( ) A: X^y B: Xy C: X^^y D: None of the mentioned
- Which option is the meaning of x%y in Python?____.<br/>A. A: The integer quotient of x and y B: The quotient of x and y C: x to the y power D: The remainder of the quotient of x and y
- 下列微分方程中，( )是齐次方程。 A: \( xy' = y(\ln y - \ln x) \) B: \( xy' + {y \over x} - x = 0 \) C: \( y' + {y \over x} = {1 \over { { x^2}}} \) D: \( y - y' = 1 + xy' \)
- 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]
- 设Z(x):x是整数,N(x):x是负数,S(x,y):y是x的平方,则“任何整数的平方非负”可表示为:() A: xy(Z(x)∧S(x,y)N(y)) B: xy(Z(x)∧S(x,y)N(y)) C: xy(Z(x)S(x,y)∧N(y)) D: x(Z(x)∧S(x,y)N(y))