Mars tensor provides universal functions(a.k.a ufuncs) to support various elementwise operations. Mars tensor’s ufunc supports following features of Numpy’s one:
Broadcasting
Output type determination
Casting rules
Mars tensor’s ufunc currently does not support methods like reduce, accumulate, reduceat, outer, and at.
reduce
accumulate
reduceat
outer
at
mars.tensor.add
Add arguments element-wise.
mars.tensor.subtract
Subtract arguments, element-wise.
mars.tensor.multiply
Multiply arguments element-wise.
mars.tensor.divide
Divide arguments element-wise.
mars.tensor.logaddexp
Logarithm of the sum of exponentiations of the inputs.
mars.tensor.logaddexp2
Logarithm of the sum of exponentiations of the inputs in base-2.
mars.tensor.true_divide
Returns a true division of the inputs, element-wise.
mars.tensor.floor_divide
Return the largest integer smaller or equal to the division of the inputs.
mars.tensor.negative
Numerical negative, element-wise.
mars.tensor.power
First tensor elements raised to powers from second tensor, element-wise.
mars.tensor.remainder
Return element-wise remainder of division.
mars.tensor.mod
mars.tensor.fmod
Return the element-wise remainder of division.
mars.tensor.absolute
Calculate the absolute value element-wise.
mars.tensor.rint
Round elements of the tensor to the nearest integer.
mars.tensor.sign
Returns an element-wise indication of the sign of a number.
mars.tensor.exp
Calculate the exponential of all elements in the input tensor.
mars.tensor.exp2
Calculate 2**p for all p in the input tensor.
mars.tensor.log
Natural logarithm, element-wise.
mars.tensor.log2
Base-2 logarithm of x.
mars.tensor.log10
Return the base 10 logarithm of the input tensor, element-wise.
mars.tensor.expm1
Calculate exp(x) - 1 for all elements in the tensor.
exp(x) - 1
mars.tensor.log1p
Return the natural logarithm of one plus the input tensor, element-wise.
mars.tensor.sqrt
Return the positive square-root of an tensor, element-wise.
mars.tensor.square
Return the element-wise square of the input.
mars.tensor.reciprocal
Return the reciprocal of the argument, element-wise.
mars.tensor.sin
Trigonometric sine, element-wise.
mars.tensor.cos
Cosine element-wise.
mars.tensor.tan
Compute tangent element-wise.
mars.tensor.arcsin
Inverse sine, element-wise.
mars.tensor.arccos
Trigonometric inverse cosine, element-wise.
mars.tensor.arctan
Trigonometric inverse tangent, element-wise.
mars.tensor.arctan2
Element-wise arc tangent of x1/x2 choosing the quadrant correctly.
x1/x2
mars.tensor.hypot
Given the “legs” of a right triangle, return its hypotenuse.
mars.tensor.sinh
Hyperbolic sine, element-wise.
mars.tensor.cosh
Hyperbolic cosine, element-wise.
mars.tensor.tanh
Compute hyperbolic tangent element-wise.
mars.tensor.arcsinh
Inverse hyperbolic sine element-wise.
mars.tensor.arccosh
Inverse hyperbolic cosine, element-wise.
mars.tensor.arctanh
Inverse hyperbolic tangent element-wise.
mars.tensor.deg2rad
Convert angles from degrees to radians.
mars.tensor.rad2deg
Convert angles from radians to degrees.
mars.tensor.bitwise_and
Compute the bit-wise AND of two tensors element-wise.
mars.tensor.bitwise_or
Compute the bit-wise OR of two tensors element-wise.
mars.tensor.bitwise_xor
Compute the bit-wise XOR of two arrays element-wise.
mars.tensor.invert
Compute bit-wise inversion, or bit-wise NOT, element-wise.
mars.tensor.left_shift
Shift the bits of an integer to the left.
mars.tensor.right_shift
Shift the bits of an integer to the right.
mars.tensor.greater
Return the truth value of (x1 > x2) element-wise.
mars.tensor.greater_equal
Return the truth value of (x1 >= x2) element-wise.
mars.tensor.less
Return the truth value of (x1 < x2) element-wise.
mars.tensor.less_equal
Return the truth value of (x1 =< x2) element-wise.
mars.tensor.not_equal
Return (x1 != x2) element-wise.
mars.tensor.equal
Return (x1 == x2) element-wise.
mars.tensor.logical_and
Compute the truth value of x1 AND x2 element-wise.
mars.tensor.logical_or
Compute the truth value of x1 OR x2 element-wise.
mars.tensor.logical_xor
Compute the truth value of x1 XOR x2, element-wise.
mars.tensor.logical_not
Compute the truth value of NOT x element-wise.
mars.tensor.maximum
Element-wise maximum of tensor elements.
mars.tensor.minimum
Element-wise minimum of tensor elements.
mars.tensor.fmax
Element-wise maximum of array elements.
mars.tensor.fmin
Element-wise minimum of array elements.
mars.tensor.isfinite
Test element-wise for finiteness (not infinity or not Not a Number).
mars.tensor.isinf
Test element-wise for positive or negative infinity.
mars.tensor.isnan
Test element-wise for NaN and return result as a boolean tensor.
mars.tensor.signbit
Returns element-wise True where signbit is set (less than zero).
mars.tensor.copysign
Change the sign of x1 to that of x2, element-wise.
mars.tensor.nextafter
Return the next floating-point value after x1 towards x2, element-wise.
mars.tensor.modf
Return the fractional and integral parts of a tensor, element-wise.
mars.tensor.ldexp
Returns x1 * 2**x2, element-wise.
mars.tensor.frexp
Decompose the elements of x into mantissa and twos exponent.
mars.tensor.floor
Return the floor of the input, element-wise.
mars.tensor.ceil
Return the ceiling of the input, element-wise.
mars.tensor.trunc
Return the truncated value of the input, element-wise.