Data-types.md

@@ -9,8 +9,14 @@ Each of which can be saved with single (float in C notation) or double (double i
 ```
 Here, `real8` denotes the double-precision (default), if one wants to save a space and store variables in single-precision one should change it to `real4`.
 
-If there is a complex number one wants to store then in order to add:
+If there is a `complex` number one wants to store then in order to add:
 ```c
     wdata_variable vdelta = {"delta", "complex8", "none", "wdat"};
 ```
-here, `complex8` denotes the double-precision (default).
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+here, `complex8` denotes the double-precision (default).
+
+Similar syntax is used in `vector`s variable:
+```c
+    wdata_variable vcurrent_a = {"current_a", "vector8", "none", "wdat"};
+```
+here each element of a vector (number of elements depends on the datadim) is a double-precision, `real8` number.
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