| SimReal - Help - Calculator - Function of one variable | |
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Chose '2D Function' from the menu system To the left of the calculator is shown 4 different areas: - Up to the left: A coordinat system for plotting functions - Down to the left: An area for result information - Up to the right: Parameters and operations for functions - Down to the right: Predefined and auto (self) defined functions Predefined functions are: Line - Parabola - Hyperbola - ln - log - e^x - a^x - sin - cos - tan In addition circle and ellipse. When you chose on of the predefined functions (push the radiobutton), the function expression is shown in the 'Arithmetic expression Window' and also in the calculator display if you remove the menu system. Each funcion (also self defined functions) can contain nine parameters A, B, C, D, R, S, T, U, V. The parameter scrollbar can be used to set the current parametervalue. When the checkbox 'ParameterValue' is set, the value of the parameters are shown, else the formal function expression is shown with letters A, B, ... instead of their values. There are two parameter scrollbars, the upper one to set parametervalue, the lower one to scale the values. The graph of several functions can be shown at the same time, all of them shown in blue color except the current one in red color. Every graph shown are indicated by the checkboxes, the current one by the radiobutton. The parametervalues are always connected to the current function. You can type your own function (chose f1, f2 or f3), remove the menusystem and type in the function expression: y=A*(x-B)^3+C*x and push the 'Draw' button. |
