# -*- coding: utf-8 -*-
"""
Created on Fri Dec  9 11:03:26 2022

@author: cpresser
"""

x = 4.56
x = float("4.56")
print(x)

x = eval("2+3*4")
print(x)

x = eval("'hi' + ' there'")
print(x)

y = 5.6
z = "hello"
print(z+str(y))

eval("3.4")


import pandas as pd
df = pd.read_csv("../data/periodic_table.csv")
print(df.iloc[0,0])  # 1
print(df.iloc[0,1])  # Hydrogen

#access columns
print(df.Element)
print(df["Element"])

#access a row
print(df.loc[0])

#locate rows
print(df.loc[df.Year >= 1900])

#find max
print(df.BoilingPoint.max())
print(max(df.BoilingPoint))

#find the name of the max
index = df.BoilingPoint.idxmax()
print(df.Element[index])

diff = df.BoilingPoint - df.MeltingPoint
print(diff)

#numpy
import numpy as np
arr1 = np.array([2,3,4,5])
arr2 = np.array([7,8,9,0])

print(arr1+arr2)
print(np.sum(arr1))
print(np.max(arr2))
print(np.sin(arr1))


user = input("Enter a number: ")
try:
    value = float(user)
    print("Success")
except:
    print("An error occurred.")
    value = 0
print(value)