Tests/Calculate

Start the calculate activity

Actions

1. Start the calculate activity by clicking the icon for it in the home view.

Verify:

• A calculate icon is added to the activity ring on the home screen.
• The calculate icon throbs to indicate the activity starting up.
• That the calculate activity starts properly.

Use Copy/Paste/Cut

Actions

1. Type something into the main window of the calculator.
2. Click the Edit tab.
3. Select what you just typed, and press the copy button.
4. Click somewhere in the main window, and press the paste button.
5. Select some other section of text, and press the cut button.
6. Click somewhere in the main window, and press the paste button.

Verify

• When you click the Edit tab, the Copy, Paste, and Cut buttons come up at the top of the screen.
• When you press paste the first time, whatever text you copied is pasted in that place.
• When you press cut, the text you selected disappears from the window.
• When you press paste the second time, the text that was cut appears where your cursor is.

Use Algebra Features

Actions

1. Click the Algebra tab.
2. Click in order: a number, the square button, the enter button.
3. Click in order: the sqrt button, a number, the enter button.
4. Click in order: the exp button, the ln button, a number, the enter button.
5. Click in order: a number (preferably low), the fac button, the enter button.

Verify

• The square of the first number is returned.
• The square root of the second number is returned.
• The the third number is returned.
• The factorial of the fourth number is returned.

NOTE: Either do tests with small enough numbers that you can do the math in your head, or use another calculator to check the answers.

Use Trig Features

Actions

1. Click on the format tab, and click the deg/rad button until it shows rad.
2. Click on the Trigonometr tab.
3. Click in order: the sin button, a number (preferable to use something like pi/2), the enter button.
4. Click in order: the acos button, zero, the enter button. Then, divide the answer by pi. (click divide to get the previous result with a divide symbol)
5. Click in order: the sinh button, a number, the enter button.
6. Click on the Format tab, and click the deg/rad button once. (should show deg)
7. Click on the Trigonometr tab.
8. Click in order: the cos button, a number (e.g. 45), the enter button.

Verify

• The deg/rad button appears when the Format tab is clicked.
• The trigonometric functions buttons appear when the Trigonometr tab is clicked.
• The sin, acos, sinh, and cos functions all yield the correct relults.
• The deg/rad button changes the trig functions from working in radians to degrees and back.

NOTE: Either do tests with numbers with which you can do the math in your head, or use another calculator to check the answers.