APP description

This page draws the approximate shape surface of the binary function f(x, y). In the following input boxes, enter the definition of the binary function f(x, y) with a high-level language-like expression, such as \(x^2+y^2\) or \(xx+yy\), which is also supported. Some commonly used functions, specific expression input method see <a          The href="c703">constant expression calculation page</a> and the <a href="c713">binary function value calculation page</a>, but the arguments can only be represented by the letters x and y. You must also enter the image range of the surface, x1, x2 is the drawing range of the x-axis, x1 < x2, y1, y2 is the drawing range of the y-axis, y1 < y2, these four numbers can be input with a constant expression, for example , \((2*p)^\frac{1}{2}\) represents the square of the pi of 2 times, and so on. After entering each data and clicking the "Start Drawing" button, the surface of the function will be displayed.

Usage example

f(x,y)=0

x1=0

x2=3

y1=0

y2=3

Click "start drawing" and output the result