This HTML5 app is a function grapher that also draws the graphs of the 1st and 2nd derivative functions if desired. The following symbols can be entered:
| x | independent variable |
| + | plus |
| − | minus |
| * | multiplied by |
| / | divided by |
| ^ | power |
| (...) | bracket |
| abs(...) | absolute value |
| sqrt(...) | square root |
| exp(...) | natural exponential function |
| ln(...) | natural logarithm |
| sin(...) | sine |
| cos(...) | cosine |
| tan(...) | tangent |
| arcsin(...) | arcsine |
| arccos(...) | arccosine |
| arctan(...) | arctangent |
| sinh(...) | hyperbolic sine |
| cosh(...) | hyperbolic cosine |
| tanh(...) | hyperbolic tangent |
| arsinh(...) | inverse hyperbolic sine |
| arcosh(...) | inverse hyperbolic cosine |
| artanh(...) | inverse hyperbolic tangent |
| e | Euler's number e |
| pi | circle number π |
Note that multiplication signs (*) must not be omitted. For example, 2*x has to be entered instead of 2x.