Unit #5-06

Learning Outcome

At the end of this lesson, you will be able to:

• start to understand passing parameters by reference vs value

Review

• passing parameters

Lesson

• go over  By Reference , Computer Based Problem Solving

Activity

• nil

Daily Assignment

• create a program that will accept a number with decimals

  • you then tell the program how many decimal places you want to round off to

  • the program then passes the variables in by reference to a function and rounds it off to that many decimal places

  • you CAN NOT use any built in rounding function

  • Hint: 

    • multiply number by 10 to the power of how many decimal points you want

    • add 0.5

    • convert to integer

    • move decimal point back

  • for python you can not pass a primitive type by reference so you will have to pass the variable in a list

    • like what we have been doing in CircuitPython

    • number_var = []

    • number_var.append(number)

• read  By Reference , Computer Based Problem Solving

Extra

• recreate the same above program in another language