How to count imaginary numbers with FX 82ES

All modes are called up, please advanced abnormal mode:

First, turn on the calculator power (on).

Note: () represents the comment ( represents the second function key.

2.(pol)

9.Press the score line until you reach the top (it seems to be 6).

10.Press = (show syntax error and leave it alone), ac, left.

12.Power (below the arrow keys, that is, the keys with a small white box above the x).

15.Up key.

17.Left-key three times.

Delete 1 and "r=1, =0") appears

19.(cursor at the top) press the score line.

20.The score line is 1 at the top, and 1 is also scored below

Next, don't press the button again!

Once you enter abnormal mode, you can perform the upgrade.

4 Re: [Beginner Must Enter] 82es Soft Upgrade 991ES (8+21 Method) Detailed Explanation.

cmplx mode:

Next, the anomalous pattern that I just entered:

Note: () stands for note.

Just press the "ans" key 8 times, and then press the "sin" key to the end

2.Press "AC" (leave it alone if the syntax error appears) (if the screen darkens to normal, adjust the brightness manually).

3.Press Shift+9 (CLR) + 1 (Setup) +=(Yes) Press AC and then Shift+9 (CLR) + 2 (Memory) + = (Yes) Press AC

4.Hit "r", the specific method is to press "power" + "root number" + "power" + "root number" + "power number" + "root number" + "root number" + "power number" + "root number" + "power number" + "power ".

It must be played one by one, and the number cannot be exceeded, otherwise it will crash).

5.Press "Delete" 15 times, and the first one is "R". (There is a string of garbled characters after R, leave him alone).

6.Then press the ") key in front of the "r", then press "=", and then press "ac".

7.Press shift+9(clr)+2(memory)+=(yes) and then press "AC".

8.Press the "right" key twice, then press the "del" key (the cursor is in front of the r at this point).

9.Press the "1" key, and then press the ":" key (": the key is the alpha key + the next key under the alpha key).

10.Press "=" twice (no response, but be sure to press twice).

11.Press mode, press 2, press on.

10.At this time, it is cmplx mode, and finally it is back to normal, that is, press shift+mode(setup)+3(deg), d is restored, press shift+mode(setup)+down+4(disp)+1(dot), press shift+mode(setup)+8(norm)+1, the result is not garbled. However, there is still a flaw in this call-up, that is, the i in the result display is replaced by 1.

The defect of replacing i with 1 in the result display in cmplx mode has also been solved, that is, it is regarded as adding a "shift" + "2" + "4" after it, and this is solved.

This model can't be counted.

To calculate imaginary numbers, there must be a key on the calculator"i"is possible.

It's a pity that the 82 is a very old model, so give it up.

Recommend 991 I've been using it for 6 years and I'm still handy.

I'm sorry to tell you, but it can't be counted.

The modulus length of the complex number is the square of the real part plus the square of the imaginary part and then the root number, and the corresponding imaginary number is the absolute value of the coefficient in front of i.

Plural forms such as: a+bi

modulo = root number (a 2 + b 2).

An imaginary number is like bi

Modulus = absolute value of b.

The sum of squares of the real and imaginary parts.

First find the conjugate complex number of the denominator, and then multiply the numerator and denominator by this number at the same time, so that the denominator becomes a real number, and then do complex multiplication operations on the numerator, and finally divide the real part of the result to get the answer.

For example: (2+3i) (4-2i)=[2+3i)(4+2i)] 4-2i)(4+2i)]=2+16i) 20

do you understand?

Definition: An imaginary number is a number whose square is negative.

Imaginary and real numbers are the two main parts of complex numbers.

Calculation: Specify i 2=-1

When the real number is operated with i, the original operation still holds, so that -2=2*i 2

Intuitively, the root number 2*i is the representation of the root number -2, but [Note] cannot be represented by the symbol in the root number.

An imaginary number is a number whose square is negative.

Provisions: Imaginary numbers within the range we have learned do not have square roots, and cannot be used in open square operations. The imaginary power of a number can be converted into trigonometric functions (sine and cosine functions) and imaginary number operations using Euler's formula.

Convert imaginary numbers into exponents, i.e. in the form of RE (iPHI).

Solve the equation: x 2=-1

Solve the above equation to obtain: x=+i, x=-i

i is the unit of imaginary numbers.

ii+i2+i3+i4=0

The four terms are a cycle, and all of these periods add up to 0, so the last remaining term in the above equation is:

1+i2005+i2006=1+i(4*501+1)+i(4*501+2)=1+i-1=i