One Pager Cheat Sheet

• This lesson covers the use of variables to store information, and the basics of math operations in programming languages.
• Variables are used to store and manipulate data in a programming language by using the assignment operator (equal sign (=)) to assign values to the variable.
• Variables can be directly initialized as number with value 12 on both Python and JavaScript interpreters.
• No valid JavaScript variable name must start with a letter, underscore (_), or dollar sign ($) and follow camelCase naming convention for proper syntax.
• The value stored in variable c is equal to 10.
• Programming languages allow us to perform various mathematical operations using basic arithmetic operators such as addition, subtraction, multiplication, division, modulus and exponentiation.
• You can directly perform math operations in Python, and save the result in new variables if needed.
• Python is a powerful tool which offers rich functionality, including specific operations such as floor division (//), which can be used to perform complex calculations.
• In Python, additional mathematical operations not available with simple operators can be accessed through the Python math library by including an import statement into the program.
• The Math.sqrt() function is used to calculate the square root of 36 and added to 10, producing an output of 16.
• The output of the console.log() in JavaScript is 9 due to --c being a decrement operator after variables a and b were both assigned values.
• Mastering basic programming concepts such as variables and mathematical operators is important as they are the building blocks for further programming techniques.