Quick reference
Constants
pi
pi is by default set to π (approx. 3.14159265)
pi_2 = π/2
pi_4 = π/4
M_PI = π
M_PI_2 = π/2
M_PI_4 = π/4
M_1_PI = 1/π
M_2_PI = 2/π
M_2_SQRTPI = 2/sqrt(π)
e
e is by default set to euler's constant (approx. 2.7182818)
M_E = e
log2e
log2e is by default set to the base-2 logarithm of e (approx. 1.442)
M_LOG2E = log2e
log10e
log10e is by default set to the base-10 logarithm of e (approx. 0.434)
M_LOG10E = log10e
ln2
ln2 is by default set to the natural logarithm of 2 (approx. 0.693)
M_LN2 = ln2
ln10
ln10 is by default set to the natural logarithm of 10 (approx. 2.302)
M_LN10 = ln10
sqrt2
sqrt2 is by default set to the square root of 2 (approx. 1.414)
M_SQRT2 = sqrt2
sqrt1_2
sqrt1_2 is by default set to the square root of 1/2 (approx. 0.707)
M_SQRT1_2 = sqrt1_2
SHRT_MIN
CHAR_MIN minimum signed char value (-128)
CHAR_MAX maximum signed char value (127)
UCHAR_MAX maximum unsigned char value (255)
SHRT_MIN minimum signed short value (-32768)
SHRT_MAX maximum signed short value (32767)
USHRT_MAX maximum unsigned short value (65535)
INT_MIN minimum signed int value (-2147483648)
INT_MAX maximum signed int value (2147483647)
UINT_MAX maximum unsigned int value (4294967295)
LONG_MIN minimum signed long value (-2147483648)
LONG_MAX maximum signed long value (2147483647)
ULONG_MAX maximum unsigned long value (4294967295)
...
Math functions
absabs(x) Returns the absolute value of a number
acosacos(x) Returns the arccosine of a number
asinasin(x) Returns the arcsine of a number
atanatan(x) Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians
atan2atan2(y,x) Returns the angle theta of an (x,y) point as a numeric value between -PI and PI radians
ceilceil(x) Returns the value of a number rounded upwards to the nearest integer
coscos(x) Returns the cosine of a number
expexp(x) Returns the value of Ex
floorfloor(x) Returns the value of a number rounded downwards to the nearest integer
loglog(x) Returns the natural logarithm (base E) of a number
powpow(x,y) Returns the value of x to the power of y
randomrandom() Returns a random number between 0 and 1
roundround(x) Rounds a number to the nearest integer
sinsin(x) Returns the sine of a number
sqrtsqrt(x) Returns the square root of a number
tantan(x) Returns the tangent of an angle
List functions
listlist(a,b [...]) Returns min, max, median, mean and sum of all agruments
sumsum(a,b [...]) Returns the sum of all arguments
meanmean(a,b [...]) Returns the mean of all arguments
medianmedian(a,b [...]) Returns the median of all arguments
sortsort(a,b [...]) Returns a sorted array of all arguments (ascending order)
sortrsortr(a,b [...]) Returns a sorted array of all arguments (descending order)
maxmax(a,b [...]) Returns the number with the highest value
Alias: MAX(a,b [...])
minmin(a,b [...]) Returns the number with the lowest value
Alias: MIN(a,b [...])
Shortcuts
Enter = Move calculation to history and clear field.
Up arrow = Get last entry from history.
Space in empty field = Use retval from last calculation.
0x = Input hexadecimal numbers using prefix 0x.
Color
Input color using # or rgb/rgba. F.ex: #000, #000000, rgb(255,255,255) or rgba(255,255,255,1.0)
About calc
Created by
Emil Segerås. I made it for fun and because i frequently needed something like it. I also wanted to do something with the new CSS properties border-radius and box-shadow :)
The black leather background is inspired from a wallpaper made by
adam betts.
The graph use a canvas library called
flot.
Feedback:
Suggestions and patches can be
mailed!
