| Operators, Function |
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| arithmetic operators | + , - , * , / , % (modulo) |
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| wrap upper | append to upper | Explanation |
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| ( ) | 1 / (x) | inverse of a number, x, = 1 / (x) |
| ( ) | abs(x) | absolute of a number, x |
| ( ) | sin(rad) | sine of a number, rad (radian) （-1～1） |
| ( ) | cos(rad) | cosine of a number, rad (radian) （-1～1） |
| ( ) | tan(rad) | tangent of a number, rad (radian) （-∞～∞） |
| ( ) | asin(x) | arc sine （-π/2～π/2） |
| ( ) | acos(x) | arc cosine （0～π） |
| ( ) | atan(x) | arc tangent （-π/2～π/2） |
| ( ,) | atan2(y, x) | arc tangent of y/x (-π～π) |
| PI | the circular constant, π = 3.141592653589793 |
| ( ) | sin(deg * PI / 180) | sine of a number, deg (degree) （-1～1） |
| ( ) | cos(deg * PI / 180) | cosine of a number, deg (degree) （-1～1） |
| ( ) | tan(deg * PI / 180) | tangent of a number, deg (degree) （-∞～∞） |
| ( ) | asin(x) * 180 / PI | arc sine (degree)（-90～90） |
| ( ) | acos(x) * 180 / PI | arc cosine (degree)（0～180） |
| ( ) | atan(x) * 180 / PI | arc tangent (degree)（-90～90） |
| ( , ) | atan2(y, x) * 180 / PI | arc tangent of y/x (degree)(-180～180) |
| ( ) | sqrt(x) | square root of a number x = √(x) |
| SQRT2 | sqrt(2) = 1.4142135623730951 |
| SQRT1_2 | 1 / sqrt(2) = 0.7071067811865475 |
| ( ,) | pow(x, y) | = x y, A floating point number is available like 1.674927471E-27, 1.7588201e11 |
| ( ,) | pow(x, 1 / 3) | = n√(x) = x 1/n |
| E | base of natural logarithm, e = 2.718281828459045 |
| ( ) | exp(x) | = e x |
| ( ) | log(x) | = log e x |
| LN2 | log e 2 = 0.6931471805599453 |
| ( ) | log(x) / LN2 | = log 2 x |
| LN10 | log e 10 = 2.302585092994046 |
| ( ) | log(x) / LN10 | = log 10 x |
| LOG2E | log 2 e = 1.4426950408889634 |
| LOG10E | log 10 e = 0.43429448190325176 |
| ( ) | ceil(x) | ceil a number, x, 2.5 to 3, -2.5 to -2. |
| ( ) | floor(x) | floor a number, x, 2.5 to 2, -2.5 to -3. |
| ( ) | round(x) | round a number, x, 2.6 to 3, -2.6 to -3. |
| random() | show a random real number from 0 to 1 (but, not equal 1) |
| floor(random() * 100) | show a random integer number from 0 to 99 |
| ( ,) | max(x, y, ...) | maximum of x, y,... |
| ( ,) | min(x, y, ...) | mimimum of x, y,... |
| ( ,) | gcd(a, b) | G.C.M. of a, b |
| ( ,) | lcm(a, b) | L.C.M. of a, b |
| ( ,) | reduction(a, b) | reduction a fraction number, a/b |
| ( ,) | addFraction(na, da, nb, db) | add fraction numbers, na/da + nb/db |
| ( ,) | subFraction(na, da, nb, db) | substruct fraction numbers, na/da - nb/db |
| ( ,) | mulFraction(na, da, nb, db) | multiply fraction numbers, na/da × nb/db |
| ( ,) | divFraction(na, da, nb, db) | divide fraction numbers, na/da ÷ nb/db |
| ( ) | isPrime(a) | is the number, a, is a prime? |
| ( ) | primeFactors(a) | Prime factorization |
| ( ) | factorial(n) |
the factorial of n. |
| ( ,) | B_C(n, r) |
the binomial coefficient. (nr) |
| ( ,) | sums(a, b, c, ...) | get sum, average, variance, standardScores, etc of a, b, c, ... |
( ,)
( ,)
( ,)
|
parseInt('ff',16)
parseInt('77', 8)
parseInt('11',2)
| parse integer string with radix, 16, 8, 2. |
( )
( )
( )
|
( ).toString(16)
( ).toString(8)
( ).toString(2)
| format a number X to (2-36) radix |
| Date calculations | (Ex.) the number of days from "Jan 18 2014"
ceil((new Date().getTime() - Date.parse('Jan 18 2014'))/(24 * 3600 * 1000))
(Ex.)Know past day. (new Date("Dec 31, 1959")).toString();
(Ex.)Is there Feb 29? (new Date("Feb 29, 2015")).toString(); |
| other operators | == (equal), != (not equal),
(Ex.) var p = 0; p + 4 == 1 + 3;
<, <= , > , >= (comparison),
===, !== (equal OR not equal with number and text)
&& (logical AND), || (logical OR), ! (logical not),
&, |, ^, ~, <<, >>, >>> (32bit:AND, OR, XOR, NOT, shift to left, shift to right with a sign bit, shift to right without a sign bit)
exp1 ? exp2 : exp3 (contition)
exp1, exp2 (comma)
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| variable operators | (Ex.) var p = 0; ++p;
var (declare a variable)
= (assign value of an expression)
; (the end of an expression)
[unary operators] ++ , --
[assignment operators] =, +=, -=, *= /= %= &= |= ^= ^= <<= >>= >>>= |
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| Button | Explanation |
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| CU | Clear the upper area |
| D, | Remove the comma every 3 digits in the numbers in the upper area |
| TX | Japan Tax( * 1.1) |
| = | Copy from the up to the low and calculate |
| CL | Clear a line in the lower area |