While in the input field, you can scroll the command history back and forth with the up and down arrow keys.
You can clear the output window and command history by clicking the Clear button.
+ | addition |
- | subtraction |
* | multiplication |
/ | division |
% | modulus |
^ | power |
For example:
1 + 2 * 3 ^ 4
calculates 1 + 2 * 34, which is 163.
x = 5
x + 6
| Floating: | 1.2345e3 |
| Fixed: | 1234.5 |
Note that the calculator supports extremely large exponents for floating-point values. Displaying such numbers in the fixed-point format may be impractical.
abs(x) | Absolute value of x. |
cbrt(x) | Cube root of x. |
ceil(x) | Ceiling function (round towards positive infinity) of x. Parameter x must be real. |
copySign(x, y) | Copies sign of y to the value of x. Both x and y must be real. |
factorial(x) | Factorial of x, that is x!. Parameter x must be an integer. |
floor(x) | Floor function (round towards negative infinity) of x. Parameter x must be real. |
fmod(x, y) | Modulus, equivalent to x % y. Both x and y must be real. |
hypot(x, y) | Equivalent to sqrt(x2 + y2). Both x and y must be real. |
inverseRoot(x, y) | Equivalent to x-1/y. Parameter y must be an integer. |
n(x, y) | The value of x to the precision of y digits. Parameter y must be an integer. |
root(x, y) | Equivalent to x1/y. Parameter y must be an integer. |
scale(x, y) | Equivalent to x * 10y. Parameter y must be an integer. |
sqrt(x) | Square root of x. |
truncate(x) | Nearest integer rounded towards zero of x. Parameter x must be real. |
acos(x) | Arc cosine of x. |
acosh(x) | Hyperbolic arc cosine of x. |
asin(x) | Arc sine of x. |
asinh(x) | Hyperbolic arc sine of x. |
atan(x) | Arc tangent of x. |
atan2(x, y) | Angle of the point (y, x). Both x and y must be real. |
atanh(x) | Hyperbolic arc tangent of x. |
cos(x) | Cosine of x. |
cosh(x) | Hyperbolic cosine of x. |
exp(x) | Exponent function of x, that is ex. |
log(x) | Natural logarithm of x. |
sin(x) | Sine of x. |
sinh(x) | Hyperbolic sine of x. |
tan(x) | Tangent of x. |
tanh(x) | Hyperbolic tangent of x. |
arg(x) | Angle on the complex plane of x. |
conj(x) | Complex conjugate of x. |
imag(x) | Imaginary part of x. |
real(x) | Real part of x. |
agm(x, y) | Arithmetic-geometric mean of x and y. |
gcd(x, y) | Greatest common divisor of x and y. Both x and y must be integers. |
lcm(x, y) | Least common multiple of x and y. Both x and y must be integers. |
pi(x) | π calculated to x digits of precision. Parameter x must be an integer. |
add(x, y) | Equivalent to x + y. |
subtract(x, y) | Equivalent to x - y. |
multiply(x, y) | Equivalent to x * y. |
divide(x, y) | Equivalent to x / y. |
negate(x) | Equivalent to -x. |
mod(x, y) | Equivalent to x % y. |
pow(x, y) | Equivalent to x ^ y. |
For example:
digits=40
exp(sqrt(n(163, digits)) * pi(digits))
sqrt(-1.0) returns i.
Here i is the imaginary unit and it can be used in input expressions as well.
If you don't specify an exponent or a decimal point for a number, it will be treated
as an integer. Integers have infinite precision (see below). For example, inputting
2/3
will get you just
2/3,
the rational number. If you want a floating-point calculation instead, use e.g.
2.00 / 3.00
2. has a precision of 1 digit,
2.0 has a precision of 2 digits,
2.00000 has a precision of 6 digits
The result of the calculation is only performed to the precision allowed by the precision of the input operands, so for example
sqrt(2.00)
calculates the square root of two to three digits of precision.
Integers have infinite precision. This limits their use in certain operations. For example
sqrt(2)
will give an error that an inexact square root can't be calculated to infinite precision.
However, sqrt(4) would work.
If you want to use extreme precision (which this calculator is certainly designed for),
you can use the function n(x, y) to specify the precision of a number. For example,
sqrt(n(2, 1000))
would calculate the square root of two with a precision of 1000 digits.
If you set the precision very high, the calculation may take a very long time. During the calculation the calculator may appear unresponsive. For example, calculating
exp(n(1, 1000000))
might take an hour or so, depending on your computer's performance.