Create README.md

Signed-off-by: David Rotermund <54365609+davrot@users.noreply.github.com>

numpy/mesh_grid/README.md

@@ -0,0 +1,49 @@
+# Meshgrid
+{:.no_toc}
+
+<nav markdown="1" class="toc-class">
+* TOC
+{:toc}
+</nav>
+
+## The goal
+
+
+Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
+
+## [numpy.meshgrid](https://numpy.org/doc/stable/reference/generated/numpy.meshgrid.html)
+
+
+```python
+numpy.meshgrid(*xi, copy=True, sparse=False, indexing='xy')
+```
+
+> Return a list of coordinate matrices from coordinate vectors.
+> 
+> Make N-D coordinate arrays for vectorized evaluations of N-D scalar/vector fields over N-D grids, given one-dimensional coordinate arrays x1, x2,…, xn.
+
+```python
+import numpy as np
+import matplotlib.pyplot as plt
+
+x = np.linspace(0, 1, 100)
+y = np.linspace(0, 1, 100)
+
+xv, yv = np.meshgrid(x, y)
+
+plt.imshow(xv, cmap="hot")
+plt.xlabel("x axis")
+plt.ylabel("y axis")
+plt.title("xv")
+plt.show()
+
+plt.imshow(yv, cmap="hot")
+plt.xlabel("x axis")
+plt.ylabel("y axis")
+plt.title("yv")
+plt.show()
+```
+
+![image0](image0.png)
+
+![image1](image1.png)