arrayfire.arith module

Math functions (sin, sqrt, exp, etc).

arrayfire.arith.abs(a)

Find the absolute values.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

Contains the absolute values of the inputs.

arrayfire.arith.acos(a)

Arc Cosine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc cosine of each value from a.

arrayfire.arith.acosh(a)

Arc Hyperbolic Cosine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc hyperbolic cosine of each value from a.

arrayfire.arith.arg(a)

Find the theta value of the inputs in polar co-ordinates.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

Contains the theta values.

arrayfire.arith.asin(a)

Arc Sine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc sine of each value from a.

arrayfire.arith.asinh(a)

Arc Hyperbolic Sine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc hyperbolic sine of each value from a.

arrayfire.arith.atan(a)

Arc Tangent of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc tangent of each value from a.

arrayfire.arith.atan2(lhs, rhs)

Find the arc tan using two values.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

Contains the value arc tan values where: - lhs contains the sine values. - rhs contains the cosine values.

arrayfire.arith.atanh(a)

Arc Hyperbolic Tangent of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the arc hyperbolic tangent of each value from a.

arrayfire.arith.cast(a, dtype)

Cast an array to a specified type

Parameters:

a : af.Array

Multi dimensional arrayfire array.

dtype: af.Dtype

Must be one of the following:

• Dtype.f32 for float
• Dtype.f64 for double
• Dtype.b8 for bool
• Dtype.u8 for unsigned char
• Dtype.s32 for signed 32 bit integer
• Dtype.u32 for unsigned 32 bit integer
• Dtype.s64 for signed 64 bit integer
• Dtype.u64 for unsigned 64 bit integer
• Dtype.c32 for 32 bit complex number
• Dtype.c64 for 64 bit complex number

Returns

——–

out : af.Array

array containing the values from a after converting to dtype.

arrayfire.arith.cbrt(a)

Cube root of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the cube root of each value from a.

arrayfire.arith.ceil(a)

Round the values towards a bigger integer.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the ceiled values.

arrayfire.arith.conjg(a)

Find the complex conjugate values of the input.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing copmplex conjugate values from a.

arrayfire.arith.cos(a)

Cosine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the cosine of each value from a.

arrayfire.arith.cosh(a)

Hyperbolic Cosine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the hyperbolic cosine of each value from a.

arrayfire.arith.cplx(lhs, rhs=None)

Create a complex array from real inputs.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : optional: af.Array or scalar. default: None.

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

Contains complex values whose - real values contain values from lhs - imaginary values contain values from rhs (0 if rhs is None)

arrayfire.arith.erf(a)

Error function of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the error function of each value from a.

arrayfire.arith.erfc(a)

Complementary error function of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the complementary error function of each value from a.

arrayfire.arith.exp(a)

Exponential of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the exponential of each value from a.

arrayfire.arith.expm1(a)

Exponential of each element in the array minus 1.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the exponential of each value from a.

arrayfire.arith.factorial(a)

factorial of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the factorial of each value from a.

arrayfire.arith.floor(a)

Round the values towards a smaller integer.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the floored values.

arrayfire.arith.hypot(lhs, rhs)

Find the value of the hypotunese.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

Contains the value of sqrt(lhs**2, rhs**2).

arrayfire.arith.imag(a)

Find the imaginary values of the input.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the imaginary values from a.

arrayfire.arith.isinf(a)

Check if each element of the input is infinity.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the output after checking if each value of a is inifnite.

arrayfire.arith.isnan(a)

Check if each element of the input is NaN.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the output after checking if each value of a is NaN.

arrayfire.arith.iszero(a)

Check if each element of the input is zero.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the output after checking if each value of a is 0.

arrayfire.arith.lgamma(a)

Performs the logarithm of gamma function for each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the output of logarithm of gamma function of each value from a.

arrayfire.arith.log(a)

Natural logarithm of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the natural logarithm of each value from a.

arrayfire.arith.log10(a)

Logarithm base 10 of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the logarithm base 10 of each value from a.

arrayfire.arith.log1p(a)

Logarithm of each element in the array plus 1.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the the values of log(a) + 1

arrayfire.arith.log2(a)

Logarithm base 2 of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the logarithm base 2 of each value from a.

arrayfire.arith.maxof(lhs, rhs)

Find the maximum value of two inputs at each location.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

array containing the maximum value at each location of the inputs.

arrayfire.arith.minof(lhs, rhs)

Find the minimum value of two inputs at each location.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

array containing the minimum value at each location of the inputs.

arrayfire.arith.pow(lhs, rhs)

Find the power of two inputs at each location.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

array containing the value of lhs ** (rhs)

arrayfire.arith.pow2(a)

Raise 2 to the power of each element in input.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array where each element is 2 raised to power of the corresponding value from a.

arrayfire.arith.real(a)

Find the real values of the input.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the real values from a.

arrayfire.arith.rem(lhs, rhs)

Find the remainder.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

Contains the remainders after dividing each value of lhs` with those in rhs.

arrayfire.arith.root(lhs, rhs)

Find the root values of two inputs at each location.

Parameters:

lhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

rhs : af.Array or scalar

Multi dimensional arrayfire array or a scalar number.

Returns:

out : af.Array

array containing the value of lhs ** (1/rhs)

arrayfire.arith.round(a)

Round the values to nearest integer.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the values rounded to nearest integer.

arrayfire.arith.sigmoid(a)

Raise 2 to the power of each element in input.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array where each element is outout of a sigmoid function for the corresponding value from a.

arrayfire.arith.sign(a)

Find the sign of the inputs.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing -1 for negative values, 1 otherwise.

arrayfire.arith.sin(a)

Sine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the sine of each value from a.

arrayfire.arith.sinh(a)

Hyperbolic Sine of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the hyperbolic sine of each value from a.

arrayfire.arith.sqrt(a)

Square root of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the square root of each value from a.

arrayfire.arith.tan(a)

Tangent of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the tangent of each value from a.

arrayfire.arith.tanh(a)

Hyperbolic Tangent of each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the hyperbolic tangent of each value from a.

arrayfire.arith.tgamma(a)

Performs the gamma function for each element in the array.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the output of gamma function of each value from a.

arrayfire.arith.trunc(a)

Round the values towards zero.

Parameters:

a : af.Array

Multi dimensional arrayfire array.

Returns:

out : af.Array

array containing the truncated values.