Logic functions¶
Truth value testing¶
all (a[, axis, out, keepdims]) |
Test whether all array elements along a given axis evaluate to True. |
any (a[, axis, out, keepdims]) |
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 or 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. |
isnat (x, /[, out, where, casting, order, …]) |
Test element-wise for NaT (not a time) and return result as a boolean array. |
isneginf (x[, out]) |
Test element-wise for negative infinity, return result as bool array. |
isposinf (x[, out]) |
Test element-wise for positive infinity, return result as bool array. |
Array type testing¶
iscomplex (x) |
Returns a bool array, where True if input element is complex. |
iscomplexobj (x) |
Check for a complex type or an array of complex numbers. |
isfortran (a) |
Returns True if the array is Fortran contiguous but not C contiguous. |
isreal (x) |
Returns a bool array, where True if input element is real. |
isrealobj (x) |
Return True if x is a not complex type or an array of complex numbers. |
isscalar (num) |
Returns True if the type of num is a scalar type. |
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. |
array_equiv (a1, a2) |
Returns True if input arrays are shape consistent and all elements equal. |
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. |