Mathematical Functions

Trigonometric functions

cupy.sin	Elementwise sine function.
cupy.cos	Elementwise cosine function.
cupy.tan	Elementwise tangent function.
cupy.arcsin	Elementwise inverse-sine function (a.k.a.
cupy.arccos	Elementwise inverse-cosine function (a.k.a.
cupy.arctan	Elementwise inverse-tangent function (a.k.a.
cupy.hypot	Computes the hypoteneous of orthogonal vectors of given length.
cupy.arctan2	Elementwise inverse-tangent of the ratio of two arrays.
cupy.degrees	Converts angles from radians to degrees elementwise.
cupy.radians	Converts angles from degrees to radians elementwise.
cupy.unwrap	Unwrap by changing deltas between values to 2*pi complement.
cupy.deg2rad	Converts angles from degrees to radians elementwise.
cupy.rad2deg	Converts angles from radians to degrees elementwise.

Hyperbolic functions

cupy.sinh	Elementwise hyperbolic sine function.
cupy.cosh	Elementwise hyperbolic cosine function.
cupy.tanh	Elementwise hyperbolic tangent function.
cupy.arcsinh	Elementwise inverse of hyperbolic sine function.
cupy.arccosh	Elementwise inverse of hyperbolic cosine function.
cupy.arctanh	Elementwise inverse of hyperbolic tangent function.

Rounding

cupy.around	Rounds to the given number of decimals.
cupy.round_
cupy.rint	Rounds each element of an array to the nearest integer.
cupy.fix	If given value x is positive, it return floor(x).
cupy.floor	Rounds each element of an array to its floor integer.
cupy.ceil	Rounds each element of an array to its ceiling integer.
cupy.trunc	Rounds each element of an array towards zero.

Sums, products, differences

cupy.prod	Returns the product of an array along given axes.
cupy.sum	Returns the sum of an array along given axes.
cupy.cumprod	Returns the cumulative product of an array along a given axis.
cupy.cumsum	Returns the cumulative sum of an array along a given axis.
cupy.nansum	Returns the sum of an array along given axes treating Not a Numbers (NaNs) as zero.
cupy.nanprod	Returns the product of an array along given axes treating Not a Numbers (NaNs) as zero.
cupy.diff	Calculate the n-th discrete difference along the given axis.

Exponents and logarithms

cupy.exp	Elementwise exponential function.
cupy.expm1	Computes exp(x) - 1 elementwise.
cupy.exp2	Elementwise exponentiation with base 2.
cupy.log	Elementwise natural logarithm function.
cupy.log10	Elementwise common logarithm function.
cupy.log2	Elementwise binary logarithm function.
cupy.log1p	Computes log(1 + x) elementwise.
cupy.logaddexp	Computes log(exp(x1) + exp(x2)) elementwise.
cupy.logaddexp2	Computes log2(exp2(x1) + exp2(x2)) elementwise.

Other special functions

cupy.i0	Modified Bessel function of the first kind, order 0.
cupy.sinc	Elementwise sinc function.

Floating point routines

cupy.signbit	Tests elementwise if the sign bit is set (i.e.
cupy.copysign	Returns the first argument with the sign bit of the second elementwise.
cupy.frexp	Decomposes each element to mantissa and two’s exponent.
cupy.ldexp	Computes x1 * 2 ** x2 elementwise.
cupy.nextafter	Computes the nearest neighbor float values towards the second argument.

Arithmetic operations

cupy.add	Adds two arrays elementwise.
cupy.reciprocal	Computes 1 / x elementwise.
cupy.negative	Takes numerical negative elementwise.
cupy.multiply	Multiplies two arrays elementwise.
cupy.divide	Elementwise true division (i.e.
cupy.power	Computes x1 ** x2 elementwise.
cupy.subtract	Subtracts arguments elementwise.
cupy.true_divide	Elementwise true division (i.e.
cupy.floor_divide	Elementwise floor division (i.e.
cupy.fmod	Computes the remainder of C division elementwise.
cupy.mod	Computes the remainder of Python division elementwise.
cupy.modf	Extracts the fractional and integral parts of an array elementwise.
cupy.remainder	Computes the remainder of Python division elementwise.
cupy.divmod

Handling complex numbers

cupy.angle	Returns the angle of the complex argument.
cupy.real	Returns the real part of the elements of the array.
cupy.imag	Returns the imaginary part of the elements of the array.
cupy.conj	Returns the complex conjugate, element-wise.

Miscellaneous

cupy.convolve	Returns the discrete, linear convolution of two one-dimensional sequences.
cupy.clip	Clips the values of an array to a given interval.
cupy.sqrt	Elementwise square root function.
cupy.cbrt	Elementwise cube root function.
cupy.square	Elementwise square function.
cupy.absolute	Elementwise absolute value function.
cupy.sign	Elementwise sign function.
cupy.maximum	Takes the maximum of two arrays elementwise.
cupy.minimum	Takes the minimum of two arrays elementwise.
cupy.fmax	Takes the maximum of two arrays elementwise.
cupy.fmin	Takes the minimum of two arrays elementwise.
cupy.nan_to_num	Elementwise nan_to_num function.
cupy.bartlett	Returns the Bartlett window.
cupy.blackman	Returns the Blackman window.
cupy.hamming	Returns the Hamming window.
cupy.hanning	Returns the Hanning window.
cupy.kaiser	Return the Kaiser window.