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# Formatted Formula View

The Amplify SDK formulas are automatically rendered in LaTeX in IPython front-end environments that support LaTeX formula display, such as Jupyter Notebook and Visual Studio Code.

Polynomials, polynomial arrays, coefficient matrices, constraints, and models are displayed as mathematical expressions as follows.

## Variable array

```{code-cell}
import amplify

gen = amplify.VariableGenerator()
q = gen.array("Binary", shape=(4, 4))
q
```
## Polynomial

```{code-cell}
p = 2 * (q[0] * q[1]).sum()
p
```

## Polynomial array

```{code-cell}
q[0:2] + q[2:]
```

## Constraint

```{code-cell}
c1 = amplify.one_hot(q, axis=1)
c1
```

## Coefficient matrix

```{code-cell}
import numpy as np

m = gen.matrix("Binary", 4)
m.quadratic = np.array([[1, 2, 3, 4],
                        [0, 5, 6, 7],
                        [0, 0, 8, 9],
                        [0, 0, 0, 10]])
m.linear = np.array([1, 2, 3, 4])
c2 = amplify.one_hot(m.variable_array)
m
```


## Model

```{code-cell}
model = p + c1
model
```

```{code-cell}
model = m + c2
model
```