What this scientific calculator can do
It evaluates whole expressions, not just one operation at a time. Type 2 × (3 + 4)² and the answer appears underneath as you go, then press = to keep it in the history. Brackets close automatically if you leave one open.
Functions include sine, cosine and tangent with their inverses, natural and base-10 logarithms, square and cube roots, powers, exponentials and factorials. π and e are built in, and Ans brings back your last result.
Worked examples
In degree mode, sin(30) is 0.5, cos(60) is 0.5 and tan(45) is 1. Exact angles give clean answers, so sin(180) shows 0 rather than a tiny rounding error. Switch to radians and sin(π) is also 0.
√(9 + 16) is 5, 5! is 120, log(1000) is 3, and 2 xʸ 10 is 1,024. For percentages, 200 + 10% gives 220, the way a pocket calculator treats it.
Memory, history and editing
M+ and M− add or subtract the current value from memory, MR puts it back into your expression and MC clears it. The history list below the keys keeps your last 30 results; tap one to use it again.
The ± key changes the sign of the number you are typing. Backspace removes a whole function name at once, so you do not have to delete sin( one character at a time.
Accuracy and limits
Results are shown to about 12 significant digits, which hides tiny floating-point errors such as 0.1 + 0.2 showing as 0.30000000000000004. Very large or very small numbers appear in E notation, for example 1.5E20.
Some inputs have no answer. Dividing by zero, taking the square root or logarithm of a negative number, tan(90°) and factorials of non-integers or numbers above 170 show a short message instead of a wrong result.
Questions people ask
How do I switch between degrees and radians?
Use the Deg and Rad keys. The active mode is shown at the top of the display. In degrees, sin(30) gives 0.5. In radians, the same keys would mean 30 radians, so use π, for example sin(π ÷ 6), to get 0.5.
How do I calculate a power or a root?
Use xʸ for any power, such as 2 xʸ 10 = 1,024, or x² and x³ for squares and cubes. √x is the square root and ∛x the cube root. For another root, raise to a fraction: 32 xʸ (1 ÷ 5) = 2.
What is the difference between log and ln?
log is the logarithm to base 10, so log(1000) = 3. ln is the natural logarithm to base e, so ln(e) = 1. Use 10ˣ and eˣ to go the other way.
How does the calculator order operations?
It follows normal maths order: brackets first, then powers and factorials, then multiplication and division, then addition and subtraction. A minus sign before a power applies after it, so −2² = −4. Use brackets to be sure.
Can I use my keyboard?
Yes. Type digits, + − * / ^ ( ) % and !, press Enter or = for the result, Backspace to delete and Escape to clear. Typing x also gives a multiplication sign.