# Setting the coordinates of a two-dimensional vector

You can set the coordinates of vectors either directly or using functions. The functions for setting coordinate values allow you to do this in one line.

Function for **BgcVector2FP32**:

```c
inline void bgc_vector2_set_values_fp32(const float x1, const float x2, BgcVector2FP32* to);
```

Function for **BgcVector2FP32**:

```c
inline void bgc_vector2_set_values_fp64(const double x1, const double x2, BgcVector2FP64* to);
```

Each of these functions is equivalent to the following lines of code:

```c
to->x1 = x1;
to->x2 = x2;
```

Invalid pointers should not be passed in the **to** parameter. The NULL (0) value is also considered invalid.

Example of use:

```c
#include <stdio.h>
#include <basic-geometry.h>

int main()
{
    BgcVector2FP32 my_vector;

    bgc_vector2_set_values_fp32(-2, 7, &my_vector);

    printf("x1 = %f, x2 = %f\n", my_vector.x1, my_vector.x2);

    return 0;
}
```

[Documentation](../intro-eng.md) / [2D vectors](../vector2-eng.md)