 # How to plot graphs in Python

plot where y = x**2 for x over the interval 1 to 5, properly labelled

Create a histogram where the mean = 0, std. dev. = 1, n = 300, and there are sqrt(n) bins

Create a line plot of your choosing with an appropriate legend which displays the formula of the curve depicted.
The formula should be formatted using TeX syntax to create a professional presentation.
Python Last Comment
Maria Qureshi

8/22/2022 - Mon

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Maria Qureshi

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-27-b734c71068e0> in <module>()
6
7 x_vals = (1, 2, 3, 4, 5)
----> 8 y_vals = (x_vals**2)
9
10 plt.plot(x_vals, y_vals)

TypeError: unsupported operand type(s) for ** or pow(): 'tuple' and 'int'

I dont get why this is showing as an error?
Maria Qureshi

x_vals = (1, 2, 3, 4, 5)
y_vals = (x_vals**2)

plt.plot(x_vals, y_vals)
plt.xlabel("my x label")
plt.ylabel("my y label")
plt.legend(("\$y=x^2\$",))
plt.show()

TypeError                                 Traceback (most recent call last)
<ipython-input-27-b734c71068e0> in <module>()
6
7 x_vals = (1, 2, 3, 4, 5)
----> 8 y_vals = (x_vals**2)
9
10 plt.plot(x_vals, y_vals)

TypeError: unsupported operand type(s) for ** or pow(): 'tuple' and 'int'

I dont get why this is showing as an error?

`x_vals = (1, 2, 3, 4, 5)` is a tuple. You can't raise a tuple to a power, so you get an error.

On the other hand `x = linspace(1, 5, 1)` is an `ndarray`, and by using `x**2` you raise each element of `x` to the power of 2.
Maria Qureshi

Still getting an error

import matplotlib.patches as mpatches
import matplotlib.pyplot as plt
from numpy import linspace
%matplotlib inline

x_vals = linspace(1, 2, 3, 4, 5)
y_vals = x_vals**2

plt.plot(x_vals, y_vals)
plt.xlabel("my x label")
plt.ylabel("my y label")
plt.legend(("\$y=x^2\$",))
plt.show()

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-4-0c9e1253f2b1> in <module>()
6
7
----> 8 x_vals = linspace[1, 2, 3, 4, 5]
9 y_vals = x_vals**2
10

TypeError: 'function' object is not subscriptable