Test if integer i is a square number. Return logical true if it is.
Add two numbers
System of equations
Given a 4x4 matrix, swap the two middle columns
Compute LOG(1+X) in natural log
Solve a System of Linear Equations
Check if a number belongs in the fibonacci squence
Calculate days until Christmas
Calculate the area of a circle
Convert Fahrenheit to Kelvin
Check if integer is a prime number
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