#Find a digit at a specific place in a number

#Count the digits in a number 

#Find the largest digit in a number

#Find the second largest digit in a number

#Find the Kth largest digit in a number

#Find the smallest digit in a number

#Find the second smallest digit in a number

#Reverse the digits in a number 

#Rotate the digits in a number

#Is the number a palindrome 

#Check the number divisibility by 2, 3, 5 , & 9

#Find the generic root (sum of all digits a number)

#Find the sum of 'n' numbers 

#Find the expontention of a number 

#Find the factorial of a number 

#Check if the number is a perfect square 

#If a number is a perfect square , find its square root 

#Find the multiplication of 'n' numbers 

#Check if a number is a primary or not 

#Find the GCD of 2 numbers 

#Find the LCM of two numbers 

#Find all prime factors of a number 

#Given a number , print all primes smaller than it 

#A Fibonacci sequence 

#An AP sequence 

#A GP sequence 

#Any given sequence 

#Find the Kth number in 1 to 4 

#Find the first 'k' numbers in 5 to 8 

#Find the ith to jth numbers in 9 to 12

#Given some values ,find 13 AP's steps value 

#Given some values , find 14 GP's common ratio

#Given two linear equations ,find the solution 

#Given a quadratic equation , find the root values 

#Given a linear equation, find the dependent value for an independent value.

#Given a complex number , print its real and imagariey part 

#Multiply two complex numbers 

#Divide two complex numbers 

#Find the square of a comple number 

#Add two complex numbers 

#Substract two complex numbers 

#Find the square root of a negative number 

#Check if a number is strong number 

#Check if a number is a perfect number 

#Check if a number is an Armstrong number 

#Check if a number is a Lychrel number 

#Check if a number is Harshad number 

#Check if a number is Catalan number 

#Check if a number is a Duck number 

#Check if a number is an Ugly number 

#Check if a number is an Abundant number 

#Check if a number is Narcissistic Decimal number 

#Check if a number is Lucus number 

#Check if a number is Kaperkar number 

#Check if a number is a Happy number 

#Check if a number is an Evil number 

#Check if a number is an Amicable number 

#Check if a number is a Pronic number 

#Check if a number is a friendly Pair number 

#Check if a number is a Sunny number 

#Check if a number is a Deficient number 

#Check if a number is a Neon number 

#Check if a number is Automorphic number 

#Check if a number is Trimorphic number 

#Base 
  >Octal
  >Binary 
  >Hexadecimal 
  >Decimal 
#Weight 
  >Gram 
  >Kilogram
  >Quintal
  >Tonne 
  >Pound 
  >Ounce 
#Lenght 
  >cm 
  >mtr 
  >km 
  >ft
  >mile
#Area 
  >sq cm 
  >sq mtr 
  >sq km 
  >sq km 
  >sq inch 
  >sq ft 
  >sq yard 
  >Arce
  >Hectare
#Volume 
  >Cubic mtr 
  >Cubic Inch 
  >Cubic Ft 
  >litre 
  >Gallon
  >Pint 
  >Barrel 
#Temperature 
 >Fahrenheit
 >Celcius 
 >Kelvin 
 >Rankine 
 >Newton 
 >Romer 
 >Reaumur 
#Time 
 >Second 
 >Minute 
 >Hour 
 >Day 
 >Week
 >Month 
 >Year 
#Currency 
 >USD
 >EUR
 >GBP 
 >JPY
 >CHF
 >CAD 
 >AUD 
 >CNY 
 >HKD
 >SGD
 >KRW 
 >INR 
 >ZAR  

#Calculate loan 

#Calculte fixed deposit returns 

#Calculate Simple Interest 

#Calculate Compound Interest 

#Calculate BMI 

#Calcualte item Price  (Considering tax , discount and shipping ) 

#Find the distance between two points 

#Given two sides of a right-angel triangle , find the 3rd 

#Find the 3rd angel of a triangle when 2 are given 

#Area of a triangle when two sides are given 

#Perimeter of a square 

#Area of a square 

#Circumference of a circle 

#Circumference of a semi-circle 

#Area of a rectangle 

#Perimeter of a rectangle  

#Area of a semi-circle 

#Area of a ring 

#Circumference of an eclipse 

#Area of an eclipse 

#Volume of a hemisphere 

#Volume of a cube 

#Surface Area of a cylinder 

#Surface Area of a cylinder 

#Find scalar multiplication of a vector 

#Find the magnitude of a vector 

#Find a unit vector along a given vector

#Find dot product of two vectors 

#Find a cross product of two  vectors 

#Check if the vectors are orthogonal 

#Find addition/subtraction of vectors 

#Find the determinant of a matrix 

#Find the multiplication of two matrices 

#Find the transpose of a matrix 

#Find if two matrices are orthogonal 

#Find inverse of a 2x2 and 3x3 matrix 

#Find the addition and subtraction of matrices 

#Find the union of 2 sets 

#Find the intersection of two sets

#Find the difference between two sets 

#Find if two sets are disjoint 

#Find the symmetric difference between two sets  

#Find if 2 set is subset/superset of another