Scientific: worked example
| x | 2 |
|---|---|
| y | 10 |
| x to the power of y | 1,024 |
| Square root of x | 1.4 |
Scientific: formula
Use the keypad’s immediate-execution model step by step. It applies pending operations to the running result instead of parsing a whole expression with precedence. The separate x/y worked example illustrates 2^10 and √2; those named values are not a second keypad entry form.
Select degree or radian mode before a trigonometric operation, and use memory only for values you intend to retain.
Scientific: changing x
| x | x to the power of y | Square root of x |
|---|---|---|
| 1.6 | 110 | 1.3 |
| 1.8 | 357 | 1.3 |
| 2 (example) | 1,024 | 1.4 |
| 2.2 | 2,656 | 1.5 |
| 2.4 | 6,340.3 | 1.5 |
Scientific: compare input ranges
| Input | Tested from | To | x to the power of y: low input | x to the power of y: high input | Swing |
|---|---|---|---|---|---|
| x | 1.8 | 2.2 | 357 | 2,656 | 2,298.9 (225%) |
| y | 9 | 11 | 512 | 2,048 | 1,536 (150%) |
Scientific: individual input comparisons
| Input | Value | x to the power of y | Square root of x |
|---|---|---|---|
| x | 1.6 | 110 | 1.3 |
| 1.8 | 357 | 1.3 | |
| 2 | 1,024 | 1.4 | |
| 2.2 | 2,656 | 1.5 | |
| 2.4 | 6,340.3 | 1.5 | |
| y | 8 | 256 | 1.4 |
| 9 | 512 | 1.4 | |
| 10 | 1,024 | 1.4 | |
| 11 | 2,048 | 1.4 | |
| 12 | 4,096 | 1.4 |
Scientific: combined input changes
| x / y | 8 | 10 | 12 |
|---|---|---|---|
| 1.6 | 42.9 | 110 | 281.5 |
| 1.8 | 110.2 | 357 | 1,156.8 |
| 2 | 256 | 1,024 | 4,096 |
| 2.2 | 548.8 | 2,656 | 12,855 |
| 2.4 | 1,100.8 | 6,340.3 | 36,520.3 |
Scientific: which assumptions move the result?
Scientific: values and definitions
| Quantity and definition | Value used |
|---|---|
| x | 2 |
| y | 10 |
| x to the power of y | 1,024 |
| Square root of x | 1.4 |
Scientific: half and double x
| x | x to the power of y |
|---|---|
| 1 | 1 |
| 2 | 1,024 |
| 4 | 1,048,576 |
Common error: Expecting standard order of operations across a full expression. This keypad evaluates each operator immediately against the running total, the same chain model a physical pocket calculator uses, so 5 + 3 × 2 returns 16, not 11; press equals after each operation you want applied before starting the next.
The chain-calculation model differs from the order-of-operations rule taught in math, so enter parentheses-like steps in the order you want them evaluated. Floating-point arithmetic gives tiny errors in the last digits. Factorials above 170 exceed what a browser can represent, and trigonometric results depend on angle mode.
Memory clears when the page closes.
Algebra & Arithmetic calculators: Fraction Calculator, Decimal to Fraction Calculator, Arithmetic Sequence Calculator, Geometric Sequence Calculator, Percent Difference Calculator, Proportion Calculator.
A scientific keypad exists because everyday arithmetic operators don't reach trigonometry, logarithms or exponents, functions that show up constantly in physics, engineering, statistics and finance problems the moment a plain four-function calculator runs out of buttons.
Confirm the angle mode (degree or radian) before reading any trig result; the same button press means something entirely different in each mode, and the two most common calculator mistakes, a wildly wrong sine or cosine, trace back to this one setting.
For specific tasks see the exponent, root and logarithm calculators, and the trigonometry page for sine, cosine and tangent. The scientific notation calculator handles very large or small numbers, and the factorial and fraction calculators cover more operations. The percentage calculator helps with everyday percentages.
Scientific Calculator: quantities and terminology
Why does entering 5 + 3 × 2 give 16 here?
The keypad adds 5 and 3 when the next operator is entered, then multiplies the running 8 by 2. A precedence parser instead evaluates 3 × 2 first and gives 11.
Are factorials exact up to 170?
No. The finite-number limit and exact-integer precision are different. At 171, factorial arithmetic overflows to Infinity in JavaScript’s number format.
Some smaller factorials already require rounding even though their magnitude remains finite.
Does switching DEG and RAD convert an already entered angle?
It changes how trigonometric functions interpret angles. Check the displayed angle’s unit before applying the function rather than assuming the number has been converted.
What is the difference between degree and radian mode?
A trig function's input angle means something different in each mode: 90 in degree mode is a quarter turn, while 90 in radian mode is more than 14 full turns. Check the mode indicator before reading a sine, cosine or tangent result, and switch modes before starting a new calculation rather than partway through one
Does memory (M+, M-, MR, MC) persist if I close the page?
No. Memory exists only for the current page visit and clears when the page is closed or reloaded