About
Every input field works as a calculator. You can use the methods and constants (case sensitive!) described on this page.
Example 1
250 * 2
Example 2
(200 - 25) * (2 / 3)
Example 3
PI * pow(10, 3) + 5 * cos(2 * PI)
Example 4
5.0125e-5 * E
The result is calculated instantly (as you type) and displayed under the input field. The message syntax will appear when the expression is not understood (or incomplete).
Go to topExample 1
250 * 2
Example 2
(200 - 25) * (2 / 3)
Example 3
PI * pow(10, 3) + 5 * cos(2 * PI)
Example 4
5.0125e-5 * E
The result is calculated instantly (as you type) and displayed under the input field. The message syntax will appear when the expression is not understood (or incomplete).
| abs(x) | Returns the absolute value of x |
| acos(x) | Returns the arccosine of x, in radians |
| asin(x) | Returns the arcsine of x, in radians |
| atan(x) | Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians |
| atan2(y,x) | Returns the arctangent of the quotient of its arguments |
| ceil(x) | Returns x, rounded upwards to the nearest integer |
| cos(x) | Returns the cosine of x (x is in radians) |
| exp(x) | Returns the value of Ex |
| floor(x) | Returns x, rounded downwards to the nearest integer |
| log(x) | Returns the natural logarithm (base E) of x |
| max(x,y,z,...,n) | Returns the number with the highest value |
| min(x,y,z,...,n) | Returns the number with the lowest value |
| pow(x,y) | Returns the value of x to the power of y |
| random() | Returns a random number between 0 and 1 |
| round(x) | Rounds x to the nearest integer |
| sin(x) | Returns the sine of x (x is in radians) |
| sqrt(x) | Returns the square root of x |
| tan(x) | Returns the tangent of an angle |
| E | Returns Euler's number (approx. 2.718) |
| LN2 | Returns the natural logarithm of 2 (approx. 0.693) |
| LN10 | Returns the natural logarithm of 10 (approx. 2.302) |
| LOG2E | Returns the base-2 logarithm of E (approx. 1.442) |
| LOG10E | Returns the base-10 logarithm of E (approx. 0.434) |
| PI | Returns PI (approx. 3.14159) |
| SQRT1_2 | Returns the square root of 1/2 (approx. 0.707) |
| SQRT2 | Returns the square root of 2 (approx. 1.414) |
| Lumen/sq.meter (Lu/m^2) | 1, 0, 0, 0 | |
| Lux (lux) | 1, 0, 0, 0 | |
| Candela/sq.meter | 3.14159250538575, 0, 0, 0 | |
| Foot-candle (ft-cdl) | 10.76391, 0, 0, 0 | |
| Foot-lambert | 10.76391, 0, 0, 0 | |
| Lumen/sq.foot | 10.76391, 0, 0, 0 | |
| Lumen/sq.centimeter | 10000, 0, 0, 0 | |
| Phot | 10000, 0, 0, 0 | |
| Candela/sq.centimeter | 31415.9250538576, 0, 0, 0 | |