Här ritar du enkelt matematiska grafer som går utmärkt att infoga i ett foruminlägg.
När du är nöjd med din graf så välj alternativet "Generate BB Code" under "View" menyn (om inte BB-koden redan visas). Kopiera därefter den genererade texten in i forumet och du kommer att få en identisk bild i ditt foruminlägg.
Tips: I vissa webbläsare, exempelvis IE 6, så kan BB-koden vara lite svår att markera. Gör såhär: Placera musen straxt bakom texten, klicka och håll in musknappen samt för musen uppåt så markeras texten.
Observera att denna tjänst kräver att du har en någolunda modern webbläsare med javascript aktiverat.
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Options
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Help
Axis HelpX
Axis Controls
In most browsers the mouse
scrollwheel can he used to zoom in and out of the graph,
clicking and dragging on the graph will move the axis and
dragging the bottom right will resize the graph image.
Alternatively, and for more precision, the Axis Options from the Options menu can be used.
Syntax HelpX
Currently Accepted Syntax
| Multiplication | * |
| Divison | / |
| Subtraction | - |
| Addition | + |
| Natural Log | ln(x) |
| Logs base 10 | log(x) |
| Logs base q | log(x,q) |
| Powers, Exponentials | x^y |
| Trigonometry | cos, sin, tan |
| Inverse Trig | arccos, arcsin, arctan |
| Hyperbolic Trig | cosh, sinh, tanh |
| Inverse Hyperbolic is not supported - blame PHP |
Simplifications
2*x can be written as 2x.
cos(x) can be written as cosx
2x^2 will be taken as 2*x*x
Lines HelpX
Types of Line
| Functions | Will plot y=f(x), with f(x) given in terms of x only. |
| Parametrics | Will plot a line y=f(q1), x=f(q2), with both functions given in terms of q. |
| Gradients | Will plot the gradient function of the given function of x, in effect plotting dy/dx. |
| Polar Equations | Using the polar co-ordinate system, this can plot a graph of pheta=f(r), or r=f(pheta). Where r is the distance from the pole (origin), and theta is the angle anti-clockwise from the positive x axis. |
ShortcutsX
Keyboard Shortcuts
The underlined letter in any of the menus is the key which can be pressed to open that menu or window. Eg pressing 'O' then 'X' opens the Axis Options window.
Escape will close all currently open windows.
Clicking on the graph whilst holding 'C' will centre it to that point.
Pressing 'F' creates a new function, 'P' a new parametric, and 'G' a new gradient.
Pressing 'R' resets the axis to the centre and with a zoom of ±4.
New Parametric EquationX
In terms of q:
edit Parametric EquationX
In terms of q:
