HoubySoft.com | HC - List of Features

FEATURES
========
All functions are implemented with the MAPM library allowing for high precision.
Constants are stored with 128 decimal places.

- RPN / infix modes of input
- simple operations (+,-,*,/,%,!)
- Logic and programming
- implied multiplication
- powers (use the ^ sign, for example 2^5)
- user-defined functions (see the USER-DEFINED VARIABLES AND FUNCTIONS section)
- ans() - returns the result of the last expression
- abs(x) - absolute value of x
- acos(x) - arc cosine of x
- asin(x) - arc sine of x
- atan(x) - arc tangent of x
- cbrt(x) - returns the cube root of x
- ceil(x) - returns x rounded to the nearest integer upwards
- cmtoinch(x) - converts x, which has to be in cm, to inches
- cos(x) - cosine of x
- cosh(x) - hyperbolic cosine of x
- ctof(x) - converts x, which has to be in degrees Celsius, to Fahrenheit
- ctok(x) - converts x, which has to be in degrees Celsius, to Kelvin
- exp(x) - exponential function
- factorial(x) - factorial of x (you can also use the '!' notation)
- fibo(x) - return the xth term of the Fibonacci sequence
- floor(x) - returns x rounded to the nearest integer downwards
- floztoml(x) - converts x, which has to be in US Fluid ounces, to mL
- ftoc(x) - converts x, which has to be in Fahrenheit, to degrees Celsius
- ftok(x) - converts x, which has to be in Fahrenheit, to Kelvin
- fttom(x) - converts x, which has to be in feet, to meters
- gcd(x,y) - finds the greatest common divisor of x and y
- gmul(expr_1, expr_2, ..., expr_n) - similar to graph, but can draw an
  arbitrary number of functions on one graph (note : to set xmin, etc., make a call to graph() first)
- graph(expr,xmin,xmax,ymin,ymax) - draw a graph (generate a PNG file if in command-line),
  example syntax:
    graph(x^2,-10,10,-100,100)
  click here for more details about graphing
- graph3(expr,xmin,xmax,ymin,ymax,zmin,zmax) - draw a 3D graph (generate a PNG file if in
  command-line), example syntax:
    graph3(x+y,-10,10,-10,10,-20,20)
  click here for more details about graphing
- inchtocm(x) - converts x, which has to be in inches, to cm
- kmtomi(x) - converts x, which has to be in km, to miles
- ktoc(x) - converts x, which has to be in Kelvin, to degrees Celsius
- ktof(x) - converts x, which has to be in Kelvin, to Fahrenheit
- lcm(x,y) - finds the least common multiple of x and y
- ln(x) - natural logarithm
- log10(x) - common logarithm
- mitokm(x) - converts x, which has to be in miles, to km
- mltofloz(x) - converts x, which has to be in mL, to US fluid ounces
- mod(x,y) - modulus (you can also use the C-style '%' notation)
- mtoft(x) - converts x, which has to be in m, to feet
- nCr(n,k) - binomial coefficient (combinatorics)
- nPr(n,k) - number of permutations (combinatorics)
- product(expr,low,high) - expression can contain 'x', which
  	     will be incremented from low to high inclusive, for example:
	     > product(x^2,1,5)
	     = 14400
- rand([int]) - if int is specified, return a random integer in the range
  [1 ; int], otherwise return a real number in the range [0;1[
- round(x) - round x to the nearest integer (for .5 cases, away from zero)
- sin(x) - sine of x
- sinh(x) - hyperbolic sine of x
- sqrt(x) - returns the square root of x
- sum(expr,low,high) - expression can contain 'x', which will
             be incremented from low to high inclusive, for example:
	     > sum(x^2,1,5)
	     = 55
- tan(x) - tangent of x
- tanh(x) - hyperbolic tangent of x
- totient(x) - Euler's totient function
- Constants:
  - answer - The Answer
  - c - speed of light
  - e - Euler's number
  - g - standard gravitational acceleration on Earth
  - phi - Golden ratio
  - pi