# Create a $1$D array with values ranging from $0$ to $9.$

$[]$

Python

# Convert a $1$D array to a $2$D array with $2$ rows.

$[]$

$q,$

# Create a $55$ matrix with row values ranging from $0$ to $4.$

Python

$4$

# Convert a $1$D array to a boolean array where all positive values become True.

Python

$q,$

$$

$$ # Calculate the dot product of two arrays.

Python

$vv$ # Calculate the dot product of two arrays.

# Find the mean of each row in a $2$D array.

$[]$