Question about 1988 Lincoln Mark VII

# Why is a number divided by zero is undefined?

Posted by on

• Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

• Lincoln Master

The reason is related to the associated multiplication question. If you divide 6 by 3 the answer is 2 because 2 times 3 IS 6. If you divide 6 by zero, then you are asking the question, "What number times zero gives 6?" The answer to that one, of course, is no number, for we know that zero times any real number is zero not 6. So we say that division by zero is undefined, for it is not consistent with division by other numbers.

You can try to make up a good set of rules, but it always leads to nonsense, so to avoid all the trouble we just say that it doesn't make sense to divide by zero.

What happens if you add apples to oranges? It just doesn't make sense, so the easiest thing is just to say that it doesn't make sense, or, as a mathematician would say, "it is undefined."

Maybe that's the best way to look at it. When, in mathematics, you see a statement like "operation XYZ is undefined", you should translate it in your head to "operation XYZ doesn't make sense."

Other details can find in Why can't we divide by zero?

Hope help with this (remember rated this).

Posted on Feb 06, 2010

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
goodluck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### Instant economy displays 99 when idling.

did you scan the PCM for DTC errors? first? if not why not?
this toy only works when all else works, so....
when going zero miles per hour there is no MPG.
do the math, ?
distant traveled divided by fuel consumed is.
0 div / fuel rate = 0 see? 0 /1000 is 0,

I made my own tool and it shows 200 for that and 200 for divide by zero. (when you drive and cut throttle the injectors cut fuel so fuel is zero, causing divide zero errors. ( 10 miles / 0 is ( div by zero error)
so i trap both those errors, in my software, with 200 flag , the 200 means, (can not compute MPG) see? or I could use 999.

since i didn't design the jeep PCM , i cant tell you there traps.
its just toy. but is ok cruising, use that when moving,
MPG stopped is 0.

have you tried cut fuel mode yet?
drive fast , cut throttle, hot engine, in gear, and fuel is 0 flow.
try that, and watch what it does, what you see is what you get.
my other car , with full obd2 tools, shows 190 mpg.
and is real.
see that here. buddies, top scan tool live data. and plot.
http://www.fixkick.com/my96-16v/fuel-MAF-VSS.JPG

some cars use injector pulse width (flow) to compute MPG
other use MAF air flow. and reverse compute injector rates, (tricky ask)
does this help?
my 2002 jeep has my home made MPG gauge from scratch.
(Arm processor based)

Jan 31, 2015 | 2014 Jeep Grand Cherokee

### Undefined VW POLO TIMING CHAIN MARKS

Hi. There are no marks. There is a specail tool that clips into the ack of the head to line the cams. The crank is set via a dial guage in number 1 cylinder to measure when the piston is at TDC.

Oct 15, 2014 | 2010 Volkswagen Polo 1.2

### How can i calculate rate of fuel consumption

set trip odometer to zero,fill fuel tank,drive car until 1/2 tank and fill up again record your miles from trip odometer, divide this number by the gallons of gas you just filled car with and this will give you miles per gallon (MPG)

Jul 04, 2014 | 1999 Honda Accord

### 3/8-7/2= how do I get the answer I know the answer but want to know hot to get it

You convert the fractions so they have the same denominator (bottom number) then subtract the numerators (top numbers). 7/2 is the same as 28/8 (8 divided by 2 = 4. 4 times 7 = 28, so the equivalent fraction is 28/8. You can check by dividing 8 into 28 = 3 1/2 = 7/2. So, 3/8 - 28/8 = negative 25/8 or 3 1/8.

Sep 24, 2012 | Cars & Trucks

### Check engine light comes on, diagnostic reading says 1810

First Character - System

The first character identifies identifies the system related to the trouble code.

• P = Powertrain
• B = Body
• C = Chassis
• U = Undefined
Second Digit - Code Type

The second digit identifies whether the code is a generic code (same on all OBD-II equpped vehicles), or a manufacturer specific code.

• 0 = Generic (this is the digit zero -- not the letter "O")
• 1 = Enhanced (manufacturer specific)
Third Digit - Sub-System

The third digit denotes the type of sub-system that pertains to the code

• 1 = Emission Management (Fuel or Air)
• 2 = Injector Circuit (Fuel or Air)
• 3 = Ignition or Misfire
• 4 = Emission Control
• 5 = Vehicle Speed & Idle Control
• 6 = Computer & Output Circuit
• 7 = Transmission
• 8 = Transmission
• 9 = SAE Reserved
• 0 = SAE Reserved

Mar 03, 2011 | Chevrolet Chevy Cars & Trucks

### Red lighting bolt light is on in my 06 dodge charger what does it mean

Divide the smallest number by itself to get 1. Then divide the larger number by the smaller. ie 19 teeth on pinion, 74 on crownwheel will give you a final drive ratio of (74:19) 3.89:1

Jul 11, 2010 | Cars & Trucks

### To find rear end ratio you multiply the number of teeth on the ring gear times the number of teeth on the pinion right?

Divide the smallest number by itself to get 1. Then divide the larger number by the smaller. ie 19 teeth on pinion, 74 on crownwheel will give you a final drive ratio of (74:19) 3.89:1

Jul 11, 2010 | Cars & Trucks

### If I've travelled 2082 KL in a 12 month period how much fuel would I have used in an SUV

Depends on how you drive, how long you let it warm up, etc. If it was getting say 20 mpg, it would use about 65 gallons to go 1294 miles (2082KM), Do you know how to check your fuel mileage? When you fill up, zero the trip meter, or write down the miles, next time you fill up, get a receipt with gallons (liters) on it and write down the miles, divide it by the number of gallons, this is miles per gallon. 200 miles divided by 10 gallons equals 20MPG . zero the trip odometer again and next tank you can figure it again. I write the miles on my reciepts so anytime I want I can check. Hope this helps.

Apr 30, 2010 | 2002 Acura MDX

### How many miles per gallon does my pontiac get?

Fill the gas tank till the filler nozzle clicks

Zero the trip meter

Drive the car for say 100 miles

Fill up the tank again until the nozzle goes click again

Take a note of the number of gallons you put in divide that number into 100

So 5 gallons divided into 100 will tell you that the car is doing 20 mpg

if you have added 4 Gallons and 3 pints then divide the 100 by 4.40 which gives you 22.73mpg

Feb 15, 2010 | 2005 Pontiac Grand Prix

### My 1999 chevy malibu is leaking coolant and smoking by the resavoir and overheating. What could be causing this

My 1999 chevy malibu is leaking coolant and smoking by the resavoir and overheating. What could be causing this I recommend: | Change
1 2 3 4 5 6 7

Dec 12, 2009 | 1999 Chevrolet Malibu

## Open Questions:

#### Related Topics:

121 people viewed this question

Level 3 Expert

Level 3 Expert

Level 3 Expert