Math Calculator Notes

  • AC

    All Clear

    clears everything, including memory.

  • DEL

    Delete

    removes the last digit or character typed, one at a time.

  • sin

    Sine

    Ratio of opposite side to the hypotenuse in a right angle

    Example;

    sin θ =
    opposite hypotenuse
  • cos

    Cosine

    Side next to the angle divided by the longest side (hypotenuse) of the triangle

    Example;

    cos θ =
    adjacent hypotenuse
  • tan

    Tangent

    Ratio of opposite side to adjacent side

    Example;

    tan θ =
    sin θ
    cos θ
  • MC

    Clear memory

    Clears numbers in memory

  • MR

    Recall Number

    Recall number stored in memory

  • M+

    Add Current Number

    Add current number from memory

  • M-

    Subtract Current Number

    Subtract CURRENT number from memory

  • /

    Division

    Splitting a number into equal parts

    Example;

    4 / 2 = 2
  • x

    Multiplication

    Repeated addition of a number

    Example;

    2 x 3 = 6
  • +

    Addition

    Combining two or more numbers to get a total.

    Example;

    1 + 1 = 2
  • -

    Subtraction

    Taking one number away from another.

    Example;

    1 - 1 = 0