Follow a practical path from the home screen and mode settings to fractions, trigonometry, probability, statistics, tables and memory.
The calculator display keeps recent expressions above the active line. Enter a calculation, press ENTER, then use the up and down controls to recall earlier work.
Expected result: 11. Multiplication is evaluated before addition.
Open mode before trigonometry or when a class requires a particular display format.
| Setting | Use it for | Example |
|---|---|---|
| DEG | Angles written in degrees | sin(30)=0.5 |
| RAD | Angles written with π or radians | sin(π/6)=0.5 |
| GRAD | Gradian angle measure | 100 grad is a right angle |
| NORM | Ordinary decimal display | 12345.678 |
| SCI | Scientific notation | 1.2345E4 |
| ENG | Powers of ten in multiples of three | 12.345E3 |
Use the fraction key to insert a numerator and denominator template. In the Calc for Class calculator, the underlying expression appears as frac(n,d).
Equivalent expression: frac(3,4)+frac(5,8). The decimal result is 1.375; use the answer toggle to show 1 3/8.
For a mixed number, use the green second function on the fraction key or type mixed(2,1,3).
Use the square key for a power of two, the root key for square roots and the second function for other roots.
For general powers, type the caret from a computer keyboard, for example 2^10. For scientific notation, type 6.02e23.
(-3)^2 and 2^(3+1).Confirm the angle indicator before using sine, cosine or tangent.
Expected result: 0.5.
To find an angle, press 2nd and then the trig key. For example, asin(0.5) gives 30 in Degree mode.
The hyp key changes the next trig operation to a hyperbolic function.
Open prb for a guided probability menu.
| Task | Expression | Result |
|---|---|---|
| Factorial | 5! | 120 |
| Combination | nCr(12,3) | 220 |
| Permutation | nPr(7,3) | 210 |
Use combinations when order does not matter and permutations when order does matter.
Open data, enter values separated by commas or spaces and choose Calculate statistics.
For the dataset 4, 6, 8, 8, 9, the calculator reports:
Open table, enter a function using x, then choose the start, end and step.
At x=4, the function 2x^2-3 gives 29.
Every successful calculation becomes Ans. You can type ans*3 to reuse it.
Use STO→ to store the current answer in A, B, C, D, X or Y. Press 2nd and then STO→ to recall a stored variable into the expression.
Values remain in the current browser until memory is reset or browser data is cleared.
| Problem | Check |
|---|---|
| Trig answer looks wrong | Confirm DEG, RAD or GRAD. |
| Unexpected order of operations | Add parentheses around the intended group. |
| Division by zero | Check the denominator or table value. |
| Unknown name | Use a supported function or stored variable. |
| Root has no real answer | Check whether an even root is being taken from a negative value. |
| nCr or nPr error | Use non-negative whole numbers and keep r≤n. |
Open the calculator to try the workflows, or continue to interactive practice.