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Arithmetic operators and assignment operators support the Number and Tensor operations, as well as the Tensor operations of different dtype.
| Unary Arithmetic Operator | Supported Type |
|---|---|
+ |
Number, Tensor, taking positive values. |
- |
Number, Tensor, COOTensor, CSRTensor, taking negative values. |
~ |
Tensor with bool data type, members take negation one by one. |
notes:
~ operator get the bitwise inversion of its integer argument; in MindSpore the ~ redefined to get logic not for Tensor(Bool).| Binary Arithmetic Operator | Supported Type |
|---|---|
+ |
Number + Number, String + String, Number + Tensor, Tensor + Number, Tuple + Tensor, Tensor + Tuple, List + Tensor, Tensor+List, List+List, Tensor + Tensor, Tuple + Tuple, COOTensor + Tensor, Tensor + COOTensor, COOTensor + COOTensor, CSRTensor + CSRTensor. |
- |
Number - Number, Tensor - Tensor, Number -Tensor, Tensor - Number, Tuple -Tensor, Tensor -Tuple, List -Tensor, Tensor -List, COOTensor - Tensor, Tensor - COOTensor, COOTensor - COOTensor, CSRTensor - CSRTensor. |
* |
Number * Number, Tensor * Tensor, Number * Tensor, Tensor * Number, List * Number, Number * List, Tuple * Number, Number * Tuple, Tuple * Tensor, Tensor * Tuple, List *Tensor, Tensor * List, COOTensor * Tensor, Tensor * COOTensor, CSRTensor * Tensor, Tensor * CSRTensor. |
/ |
Number / Number, Tensor / Tensor, Number / Tensor, Tensor / Number, Tuple / Tensor, Tensor / Tuple, List / Tensor, Tensor / List, COOTensor / Tensor, CSRTensor / Tensor. |
% |
Number % Number, Tensor % Tensor, Number % Tensor, Tensor % Number, Tuple % Tensor, Tensor % Tuple, List % Tensor, Tensor % List. |
** |
Number ** Number, Tensor ** Tensor, Number ** Tensor, Tensor ** Number, Tuple ** Tensor, Tensor ** Tuple, List ** Tensor, Tensor ** List. |
// |
Number // Number, Tensor // Tensor, Number // Tensor, Tensor // Number, Tuple // Tensor, Tensor // Tuple, List // Tensor, Tensor // List. |
& |
Number & Number, Tensor & Tensor, Number & Tensor, Tensor & Number. |
∣ |
Number | Number, Tensor | Tensor, Number | Tensor, Tensor | Number. |
^ |
Number ^ Number, Tensor ^ Tensor, Number ^ Tensor, Tensor ^ Number. |
<< |
Number << Number. |
>> |
Number >> Number. |
@ |
Tensor @ Tensor. |
Restrictions:
number type, operations between float64 and int32 are not supported. Operators including +, -, *, /, %, **, // all support left and right operands to be bool value.tensor type, left and right operands can't both be bool value.* operation on list/tuple and number means that list/tuple is copied from number and then concatenated. The data type inside list can be any data type supported by the graph mode, and multi-layer nesting is also supported. The data type in tuple must be number, string, none, and multi-layer nesting is also supported.| Assignment Operator | Supported Type, |
|---|---|
= |
All Built-in Python Types that MindSpore supported and MindSpore User-defined Data Types. |
+= |
Number += Number, String += String, Number += Tensor, Tensor += Number, Tuple += Tensor, Tensor += Tuple, List += Tensor, Tensor += List, List += List, Tensor += Tensor, Tuple += Tuple. |
-= |
Number -= Number, Tensor -= Tensor, Number -= Tensor, Tensor -= Number, Tuple -= Tensor, Tensor -= Tuple, List -= Tensor, Tensor -= List. |
*= |
Number *= Number, Tensor *= Tensor, Number *= Tensor, Tensor *= Number, List *= Number, Number *= List, Tuple *= Number, Number *= Tuple, Tuple *= Tensor, Tensor *= Tuple, List *= Tensor, Tensor *= List. |
/= |
Number /= Number, Tensor /= Tensor, Number /= Tensor, Tensor /= Number, Tuple /= Tensor, Tensor /= Tuple, List /= Tensor, Tensor /= List. |
%= |
Number %= Number, Tensor %= Tensor, Number %= Tensor, Tensor %= Number, Tuple %= Tensor, Tensor %= Tuple, List %= Tensor, Tensor %= List. |
**= |
Number **= Number, Tensor **= Tensor, Number **= Tensor, Tensor **= Number, Tuple **= Tensor, Tensor **= Tuple, List **= Tensor, Tensor **= List. |
//= |
Number //= Number, Tensor //= Tensor, Number //= Tensor, Tensor //= Number, Tuple //= Tensor, Tensor //= Tuple, List //= Tensor, Tensor //= List. |
&= |
Number &= Number, Tensor &= Tensor, Number &= Tensor, Tensor &= Number. |
∣= |
Number |= Number, Tensor |= Tensor, Number |= Tensor, Tensor |= Number. |
^= |
Number ^= Number, Tensor ^= Tensor, Number ^= Tensor, Tensor ^= Number. |
<<= |
Number <<= Number. |
>>= |
Number >>= Number. |
@= |
Tensor @= Tensor. |
Constraints:
If all operands of AugAssign are number type, value of Number can't be bool.
If all operands of AugAssign are number type, operations between float64 and int32 are not supported.
If either operand of AugAssign is tensor type, left and right operands can't both be bool value.
The *= operation on list/tuple and number means that list/tuple is copied from number and then concatenated, and the elements of the object within list/tuple can contain any of the types supported by the intentional pattern, and multiple levels of nesting are also supported.
| Logical Operator | Supported Type |
|---|---|
and |
String, Number, Tuple, List , Dict, None, Scalar, Tensor. |
or |
String, Number, Tuple, List , Dict, None, Scalar, Tensor. |
not |
Number, tuple, List and Tensor with only one element. |
Restrictions:
and, or must be able to be converted to boolean value. For example, left operand can not be Tensor with multiple elements. If the left operand of and, or is variable Tensor, the right operand must also be single-element Tensor with the same type. Otherwise, there is no requirement for right operand.| Compare Operator | Supported Type |
|---|---|
in |
Number in Tuple, String in Tuple, Tensor in Tuple, Number in List, String in List, Tensor in List, and String in Dictionary. |
not in |
Same as in. |
is |
The value can only be None, True, or False. |
is not |
The value can only be None, True, or False. |
| < | Number < Number, Number < Tensor, Tensor < Tensor, Tensor < Number. |
| <= | Number <= Number, Number <= Tensor, Tensor <= Tensor, Tensor <= Number. |
| > | Number > Number, Number > Tensor, Tensor > Tensor, Tensor > Number. |
| >= | Number >= Number, Number >= Tensor, Tensor >= Tensor, Tensor >= Number. |
| != | Number != Number , Number != Tensor, Tensor != Tensor, Tensor != Number, mstype != mstype, String != String, Tuple ! = Tuple, List != List. |
| == | Number == Number, Number == Tensor, Tensor == Tensor, Tensor == Number, mstype == mstype, String == String, Tuple == Tuple, List == List. |
Restrictions:
<, <=, >, >=, !=, if all operators are number type, value of Number can't be bool.<, <=, >, >=, !=, ==, if all operands are number type, operations between float64 and int32 are not supported.<, <=, >, >=, !=, ==, if either operand is tensor type, left and right operands can't both be bool value.==, if all operands are number type, support both number have bool value, not support only one number has bool value.!=, ==, all supported types but mstype can compare with none.此处可能存在不合适展示的内容，页面不予展示。您可通过相关编辑功能自查并修改。
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