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#1 2024-04-02 10:47:34

nycguitarguy
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From: Brooklyn, NY
Registered: 2024-02-24
Posts: 571

Step Function aka Greatest Integer Function

Given f(x) = int(x/2), find a to c.

a. f(1.2)

b. f(1.6)

c. f(-1.8)


The Rapture is the central event in biblical prophecy. The greatest truth about the Rapture is not its timing but it's reality. The Rapture will be the great disappearance.

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#2 2024-04-03 09:04:11

Bob
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Registered: 2010-06-20
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Re: Step Function aka Greatest Integer Function

Start with x 1.2, half it, take the integer part of the result.

When x is negative you'll need to check whether to round up or down to get the integer part.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
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#3 2024-04-04 05:45:53

nycguitarguy
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From: Brooklyn, NY
Registered: 2024-02-24
Posts: 571

Re: Step Function aka Greatest Integer Function

Bob wrote:

Start with x 1.2, half it, take the integer part of the result.

When x is negative you'll need to check whether to round up or down to get the integer part.

Bob

I am sure what you mean here. Can you show me how this is done?


The Rapture is the central event in biblical prophecy. The greatest truth about the Rapture is not its timing but it's reality. The Rapture will be the great disappearance.

Dr. David Jeremiah

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#4 2024-04-05 05:13:45

Bob
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Registered: 2010-06-20
Posts: 10,214

Re: Step Function aka Greatest Integer Function

The int function rounds all numbers down to the integer below the number.

Eg int(1.5) = 1

Int(1) = 1

Int(-1.5) = -2 not -1

For these questions, first you have to half the x input. Then apply the int function to the result.

Eg f(4.6) = int(2.3) = 2

f(-8.4) = int(-4.2) = -5

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#5 2024-04-05 06:20:51

nycguitarguy
Member
From: Brooklyn, NY
Registered: 2024-02-24
Posts: 571

Re: Step Function aka Greatest Integer Function

Bob wrote:

The int function rounds all numbers down to the integer below the number.

Eg int(1.5) = 1

Int(1) = 1

Int(-1.5) = -2 not -1

For these questions, first you have to half the x input. Then apply the int function to the result.

Eg f(4.6) = int(2.3) = 2

f(-8.4) = int(-4.2) = -5

Bob


Let me see.

a. f(1.2)


f(x) = int(x/2)


f(1.2) = int(1.2/2)


f(1.2) int(0.6) = 0


b. f(1.6)


f(1.6) = int(1.6/2)


f(1.6) = int(0.8) = 0


c. f(-1.8)


f(-1.8) = int(-1.8/2)


f(-1.8) = int(0.9) = 0


You say?


The Rapture is the central event in biblical prophecy. The greatest truth about the Rapture is not its timing but it's reality. The Rapture will be the great disappearance.

Dr. David Jeremiah

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#6 2024-04-05 08:29:20

Bob
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Registered: 2010-06-20
Posts: 10,214

Re: Step Function aka Greatest Integer Function

A and b good.

C error.  Half -1.8 is minus

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#7 2024-04-05 11:23:59

nycguitarguy
Member
From: Brooklyn, NY
Registered: 2024-02-24
Posts: 571

Re: Step Function aka Greatest Integer Function

Bob wrote:

A and b good.

C error.  Half -1.8 is minus

Bob

c. f(-1.8)


f(-1.8) = int(-1.8/2)


f(-1.8) = int(-0.9) = -1


You say?


The Rapture is the central event in biblical prophecy. The greatest truth about the Rapture is not its timing but it's reality. The Rapture will be the great disappearance.

Dr. David Jeremiah

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#8 2024-04-06 08:40:10

Bob
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Registered: 2010-06-20
Posts: 10,214

Re: Step Function aka Greatest Integer Function

Now correct.

B


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#9 2024-04-06 11:30:51

nycguitarguy
Member
From: Brooklyn, NY
Registered: 2024-02-24
Posts: 571

Re: Step Function aka Greatest Integer Function

Bob wrote:

Now correct.

B

Perfect.


The Rapture is the central event in biblical prophecy. The greatest truth about the Rapture is not its timing but it's reality. The Rapture will be the great disappearance.

Dr. David Jeremiah

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