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How to use our converter
Our converter tries to understand the problem
you are attempting to solve without requiring you to use a special strict syntax.
However, it may be helpful to know the most direct way to post a query
to get the best results. Listed below are a few suggestions for the
most common type of expressions.
Most mathematical operators come between the two numbers they combine,
such as the plus sign in the expression 1+1.
| Operator
|
Function
|
Example
|
| + |
addition |
120 + 74 |
| - |
subtraction |
17 - 9 |
| * |
multiplication |
5 * 7 |
| / |
division |
27 / 3 |
| ^ |
exponentiation (raise to a power of) |
2 ^ 32 |
| % |
modulo (finds the remainder after division) |
120 % 7 |
| choose |
X choose Y determines the number of ways
of choosing a set of Y elements from a set of X elements |
18 choose 4 |
| th root of |
calculates the nth root of a number |
5th root of 32 |
| % of |
X % of Y computes X percent of Y |
8% of 45 |
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Some operators work on only one number and should come
before that number. In these cases, it is required to put the number
in parentheses.
| Operator
|
Function
|
Example
|
| sqrt |
square root |
sqrt(49) |
| sin,
cos, tan etc. |
trigonometric
functions |
cos(pi/2) |
| ln |
logarithm base e |
ln(17) |
| log |
logarithm base 10 |
log(1024) |
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A few operators come after the number.
| Operator
|
Function
|
Example
|
| ! |
factorial |
7! |
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Logical operators are also supported and will result in a true or false decision.
| Operator
|
Function
|
Example
|
| > |
greater than |
3! > 10 |
| < |
less than |
E < PI |
| >= |
greater than or equal to |
2^3 >= 8 |
| <= |
less than or equal to |
E * 2 <= PI |
| = |
equal |
1000 kg = ton |
| <> |
not equal |
100 meter <> yard |
| not |
not |
not (1000 gigabyte > terabyte) |
| is |
property check |
is 7 prime, is 4 odd |
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A wide variety of mathematical functions can be used as well. Few examples listed bellow.
| Operator
|
Function
|
Example
|
| avg |
average |
average(100, 80, 75) |
| max |
maximum |
max(pound, kg, ton) |
| min |
minimum |
min(100 teaspoons, 2 cups) |
| abs |
absolute |
abs(45 F in C) |
| rnd |
random |
rnd() * 100 |
| trunc |
truncate |
trunc(rnd()*100) |
| round |
round |
round(0x75FB/2) |
| gcd |
greatest common divisor |
gcd(100, 15) |
| lcm |
least common multiple |
lcm(234, 342) |
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more notes
Parentheses can be used to enclose the parts of your
expression that you want evaluated first. For example, (1+2)*3 causes
the addition to happen before the multiplication.
The in operator is used to specify what
units you want used to express the answer. Put the word in
followed by the name of a unit at the end of your expression. This works
well for unit conversions such as: 5 kilometers in miles.
You can use hexadecimal, octal and binary numbers.
Prefix hexadecimal numbers with 0x, octal numbers
with 0o and binary numbers with 0b. For example: 0x7f
+ 0b10010101.
Our conversions calculator understands many different units, as
well as many physical and mathematical constants. These can be used
in your expression. Many of these constants and units have both long
and short names. You can use either name in most cases. For example, km and kilometer both work, as do f
and fahrenheit.
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