Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 162

How many pairs of integers (b,c) satisfy the equation

I see you have graph paper.

You must be plotting something

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Hi;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

**Online**

**scientia****Member**- Registered: 2009-11-13
- Posts: 222

So where are the imaginary numbers?

*Last edited by scientia (2013-02-07 23:41:46)*

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,647

hi scientia

Nice solution.

So where are the imaginary numbers?

Perhaps you have to imagine them.

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Hi ;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

**Online**

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,796

Hi bobbym

Those numbers you posted aren't imaginary either...

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Why not? What did I do wrong?

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

**Online**

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,796

Those are not imaginary numbers. They are complex!

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Hmmmm, you got me. You are correct!

**In mathematics, you don't understand things. You just get used to them.**

**Online**

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,796

Yes, yes I did.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Them there is fightin words where we all come from. - Gary Cooper

**In mathematics, you don't understand things. You just get used to them.**

**Online**

**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 162

Compute |5-12i|+|3-4i|.

I see you have graph paper.

You must be plotting something

Offline

**cooljackiec****Member**- Registered: 2012-12-13
- Posts: 162

a) Suppose we graph every point z in the complex plane such that |z| = 4. What shape results?

b) What is the graph of the equation |z-2i| = 3

I see you have graph paper.

You must be plotting something

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 91,494

Hi cooljackiec;

|5-12i|+|3-4i| = 13 + 5 = 18

**In mathematics, you don't understand things. You just get used to them.**

**Online**

Pages: **1**