From af51bd31759dda57cd6cec4e79a75602ef6ab1b6 Mon Sep 17 00:00:00 2001
From: Ishwari Chaudhari <148648692+ishwariiic@users.noreply.github.com>
Date: Sat, 19 Oct 2024 14:53:13 +0530
Subject: [PATCH] Intergral solver and visualiser

---
 calculus.py | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 calculus.py

diff --git a/calculus.py b/calculus.py
new file mode 100644
index 000000000..1c753c640
--- /dev/null
+++ b/calculus.py
@@ -0,0 +1,116 @@
+import tkinter as tk
+from sympy import symbols, integrate, diff, simplify, sympify, SympifyError, log, sin, cos, tan, asin, acos, atan, exp
+
+
+x = symbols('x')
+
+
+def parse_expression(expression):
+    try: 
+        return simplify(sympify(expression, {"exp": exp, "sin": sin, "cos": cos, "tan": tan, "asin": asin, "acos": acos, "atan": atan, "log": log}))
+    except SympifyError:
+       
+        replaced_expression = expression.replace('e', 'exp')
+        replaced_expression = replaced_expression.replace('sin', 'sin')
+        replaced_expression = replaced_expression.replace('cos', 'cos')
+        replaced_expression = replaced_expression.replace('tan', 'tan')
+        replaced_expression = replaced_expression.replace('asin', 'asin')
+        replaced_expression = replaced_expression.replace('acos', 'acos')
+        replaced_expression = replaced_expression.replace('atan', 'atan')
+        replaced_expression = replaced_expression.replace('log', 'log')
+        return simplify(sympify(replaced_expression, {"exp": exp, "sin": sin, "cos": cos, "tan": tan, "asin": asin, "acos": acos, "atan": atan, "log": log}))
+
+def solve_integral(expression):
+    integral = integrate(expression, x)
+    return integral
+
+def solve_derivative(expression):
+    derivative = diff(expression, x)
+    return derivative 
+
+
+def button1_click():
+    user_input = input_entry.get()
+    try:
+       
+        parsed_expression = parse_expression(user_input)
+        print("Parsed Expression:", parsed_expression)
+
+        integral = solve_integral(parsed_expression)
+        print("Integral Result:", integral)
+
+        
+        print("Result Label Text:", "Integral: " + str(integral) if integral is not None else "Invalid input. Please enter a valid input")
+
+       
+        result_label.config(text="Integral: " + str(integral) if integral is not None else "Invalid input. Please enter a valid input")
+
+    except (SympifyError, ValueError):
+        result_label.config(text="Invalid input. Please enter a valid input")
+
+def button2_click():
+    user_input = input_entry.get()
+    try:
+        
+        parsed_expression = parse_expression(user_input)
+        print("Parsed Expression:", parsed_expression)
+
+       
+        derivative = solve_derivative(parsed_expression)
+        print("Derivative Result:", derivative)
+
+       
+        print("Result Label Text:", "Derivative: " + str(derivative) if derivative is not None else "Invalid input. Please enter a valid input")
+
+        result_label.config(text="Derivative: " + str(derivative) if derivative is not None else "Invalid input. Please enter a valid input")
+
+    except (SympifyError, ValueError):
+        result_label.config(text="Invalid input. Please enter a valid input")
+        
+
+win = tk.Tk()
+win.title("FuncSol")
+win.state("zoomed")
+win.config(bg="black", cursor="arrow")
+
+
+label1 = tk.Label(win, text = "Calculus")
+label2 = tk.Label(win, text= "Reached a point of confusion and inflexion? We've got you covered!")
+label3 = tk.Label(win, text = "Enter the problem here:-")
+
+button1 = tk.Button(win, text = "> Integrate", command=button1_click)
+button2 = tk.Button(win, text = "> Differentiate", command=button2_click)
+back = tk.Button(win, text = "> Exit", command=win.destroy)
+
+label1.config(font = ("Times", 40), bg = "black", fg = "white")
+label2.config(font = ("Helvicta", 20), bg = "white", fg = "black")
+label3.config(font = ("Arial", 20), bg = "white", fg = "black")
+
+
+button1.config(font=("Arial", 12, "bold"), bg = "gold", fg = "maroon")
+button2.config(font=("Arial", 12, "bold", ), bg = "gold", fg = "maroon")
+back.config(font = ("Arial", 12, "bold"), bg = "grey", fg ="black")
+
+
+label1.grid(row = 0, column = 0, columnspan = 3, pady = 20, sticky = "n ")
+label2.grid(row = 1, column = 0, columnspan = 3, pady = 10)
+label3.grid(row = 4, column = 0, pady = 10, padx = 1, sticky = "w")
+
+button1.grid(row= 10, pady = 20, stick ="w")
+button2.grid(row = 20, pady= 20, stick = "w")
+back.grid(row= 30, pady=19, stick = "w")
+
+
+win.columnconfigure(0, weight =1)
+
+
+input_entry = tk.Entry(win, width = 50, text="here", font = ('Arial', 18))
+input_entry.grid(row = 5, pady = 10, sticky = "w")
+
+
+result_label = tk.Label(win, text = "", font=("Arial", 16, "bold"), height = 2, width=50)
+result_label.config(bg = "white")
+result_label.grid(row=25, column = 0, pady = 10, sticky = "w")
+
+
+win.mainloop()