Logic functions

Truth value testing

all(a[, axis, out, keepdims, combine_size])	Test whether all array elements along a given axis evaluate to True.
any(a[, axis, out, keepdims, combine_size])	Test whether any array element along a given axis evaluates to True.

Array contents

isfinite(x, /[, out, where, casting, order, ...])	Test element-wise for finiteness (not infinity and not Not a Number).
isinf(x, /[, out, where, casting, order, ...])	Test element-wise for positive or negative infinity.
isnan(x, /[, out, where, casting, order, ...])	Test element-wise for NaN and return result as a boolean array.

Array type testing

iscomplex(x, **kwargs)	Returns a bool array, where True if input element is complex.
isreal(x, **kwargs)	Returns a bool array, where True if input element is real.

Logical operations

logical_and(x1, x2, /[, out, where, ...])	Compute the truth value of x1 AND x2 element-wise.
logical_or(x1, x2, /[, out, where, casting, ...])	Compute the truth value of x1 OR x2 element-wise.
logical_not(x, /[, out, where, casting, ...])	Compute the truth value of NOT x element-wise.
logical_xor(x1, x2, /[, out, where, ...])	Compute the truth value of x1 XOR x2, element-wise.

Comparison

allclose(a, b[, rtol, atol, equal_nan])	Returns True if two arrays are element-wise equal within a tolerance.
isclose(a, b[, rtol, atol, equal_nan])	Returns a boolean array where two arrays are element-wise equal within a tolerance.
array_equal(a1, a2)	True if two arrays have the same shape and elements, False otherwise.

greater(x1, x2, /[, out, where, casting, ...])	Return the truth value of (x1 > x2) element-wise.
greater_equal(x1, x2, /[, out, where, ...])	Return the truth value of (x1 >= x2) element-wise.
less(x1, x2, /[, out, where, casting, ...])	Return the truth value of (x1 < x2) element-wise.
less_equal(x1, x2, /[, out, where, casting, ...])	Return the truth value of (x1 <= x2) element-wise.
equal(x1, x2, /[, out, where, casting, ...])	Return (x1 == x2) element-wise.
not_equal(x1, x2, /[, out, where, casting, ...])	Return (x1 != x2) element-wise.