c How to implement the prescription of the calculator in Windows Forms

There's a function. There is a sqrt function below, for example, if you want to open a square of 4, you can use it;

Find out 2

Hello: **Below, hope it helps! private void square root click(object sender, eventargs e) private void square click(object sender, eventargs e).

**As follows, private void square root click(object sender, eventargs e) private void square click(object sender, eventargs e).

Calculate x to the yth power.

Calculate the square root.

I just took a look at the calculator of windows, such as calculating the root number (2), enter 2 first, and then press the button of the root number, and the calculated value is displayed.

It's easy.

1.In the root number button event, if the value in the input box is not 0, then the root number can be calculated.

Here write the number in the root number).

1 Drag the widget you can, drag the widget onto the form, and give it a name (preferably corresponding to the text attribute). Layout. 2 Double-click the button to create a click event for each button, write a processing method for each event, except for the calculation of the button, it is very simple, just assign a value to the text box.

Notice that the text box is right-aligned. 3 Put three listboxes on the panel and set visible = false, the first one holds the first operand, the second one holds the calculated symbol, and the third one holds the last operand. If it is a simple operation (not a four-rule mixed operation), you can use label or textbox instead of listbox (which acts as a stack).

4 When the = sign is clicked, two operands are taken out and calculated according to the calculation symbol. The results are put in the first listbox, and the other listboxes are emptied. Assign a value to the textbox by 5 when clicking on a unary operator such as sqrt % directly on the first listbox and clear the others.

Assign 6 mc mr ms m+ to the textbox I don't and haven't done it.

I just wrote one some time ago.。。 It will be sent to you if necessary. You can look into it. Hey.

Squared: defines a double number double a=, 2);

It seems that there is no relation to the derivatives defined.

The integral is the infinite sum of f(x)*dx, and the computer is the best at adding differentiation is generally g(x1)=(f(x1)-f(x2)) (x1-x2), and within a period of interval, there are different optimizations for specific problems, parameter selection, but you have to look at the convergence first.

Use the math class.

double c = , 2);The square of 2, or the power of 2.

The derivative can be found in other static methods of the math class.

x=0, no discontinuity can be removed.

Solution: lim(x->0+)f(x).

lim(x->0+)

lim(x->0+)

lim(x->0+)

1lim(x->0-)f(x)

lim(x->0+)

1 lim(x->0+)f(x)≠lim(x->0-)f(x) x=0 is the non-stoppable discontinuity.