MaximaPHP sCal GCalc Calculator ZF sCal2 JUnitConv
GCalc
Provides calculator with graphing functionality for algebra, pre-calculus, calculus and beyond.
GCalc 2.1
© Copyright 1998-2004 Jiho Kim
Official GCalc website
GCalc 2.1 is licensed with the General Public License (GPL).
Functions and Input
GCalc graphs many types of functions where the domain and range are (floating-point) real numbers. The text field to the upper left is where the functions are entered. After typing in the function, press the Enter key on the keyboard to graph the function. The following are examples of valid inputs.
siN (3x)
3 sin X - 4 (SIN x)^3
(x+1)(X-5)
X^2-4*x-5
E^(-(((x-1)/2)^2))/sqrt(pi)
2x+1
Please note several things from these examples.
- GCalc is case-INsensitive.
- The independent variable is
x, which means that all functions must only use x as the dummy variable.
- Two mathematical constants are built into GCalc: e (2.718281828...) and pi (3.141592654...).
The following mathematical functions are currently implemented:
| Binary Operators |
+ |
addition |
| - |
subtraction |
| * |
multiplication |
| / |
division |
| ^ |
exponentiation |
| Algebraic/Arithmetic Operators |
sqrt |
square root |
| neg |
negation, neg(x)=-x |
| ln |
natural log (base e) |
| log |
common log (base 10), log(x)=ln(x)/ln(10) |
| abs |
absolute value |
| exp |
exponentiation (base e), exp(x)=e^x |
| - |
negation, -x=neg(x) |
| ceil |
ceiling, ceil(x) equals the smallest integer greater than x |
| floor |
floor, floor(x) equals the greatest integer less than x |
| sign |
if x<0, sign(x)=-1; if x=0, sign(x)=0; if x>0, sign(x)=1 |
| Trigonometric Operators |
sin |
sine |
| cos |
cosine |
| tan |
tangent |
| csc |
cosecant |
| sec |
secant |
| cot |
cotangent |
| Trigonometric Inverse Operators |
asin |
arcsine |
| acos |
arccosine |
| atan |
arctangent |
| acsc |
arccosecant |
| asec |
arcsecant |
| acot |
arccotangent |
| Hyperbolic Trigonometric operators |
sinh |
hyperbolic sine |
| cosh |
hyperbolic cosine |
| tanh |
hyperbolic tangent |
| csch |
hyperbolic cosecant |
| sech |
hyperbolic secant |
| coth |
hyperbolic cotangent |
| Hyperbolic Trigonometric Inverse Operators |
asinh |
hyperbolic arcsine |
| acosh |
hyperbolic arccosine |
| atanh |
hyperbolic arctangent |
| acsch |
hyperbolic arccosecant |
| asech |
hyperbolic arcsecant |
| acoth |
hyperbolic arccotangent |
| Constants / Variable |
x |
the independent variable |
| pi |
π=the ratio between the circumference and the diameter of a circle |
| e |
e=base of the natural log |
| Calculus |
ddx |
differentiation operator |
Also, keep in mind the following.
- Assume conventional order of operations rules.
- Parentheses are allowed.
e has different symantics depending on the context. Since floating-point literals are allowed, 5e2 equals 5×102 but does not equal 10*e.
- Implicit multiplication is allowed. For example,
3x cos x = 3*x*cos x
Most of the visitors who used this tool also used
日付と時間 (16.0%), 微積分 (12.0%), WHOIS (8.0%)
Source code of 'GCalc' is available at GCalc.
|
