+0

# What is this?

0
363
2
+40

360 devided by 114.5914 =  3.145970133884393  x114.5914 =

360. 00000000000000320202.

Dukemort  Jul 6, 2015

#2
+26547
+10

@Dukemort

This just illustrates the fact that computers generally don't store floating point numbers exactly.  The result of the first division is only approximately 3.14159...etc.  (Here it is, correct to 40 significant figures: 3.141597013388439272057065364416526894688, but even this is an approximation). Hence when this value is multiplied by the original divisor, it doesn't reproduce 360 exactly, though it's pretty close!

@ TitaniumRome

The commutative property is when a*b = b*a  for multiplication; or a + b = b + a for addition.

.

Alan  Jul 6, 2015
Sort:

#1
+3088
0

Seems to me like the real question is:

what property does this expression/equation belong to best?

i think this is communitive property

TitaniumRome  Jul 6, 2015
#2
+26547
+10

@Dukemort

This just illustrates the fact that computers generally don't store floating point numbers exactly.  The result of the first division is only approximately 3.14159...etc.  (Here it is, correct to 40 significant figures: 3.141597013388439272057065364416526894688, but even this is an approximation). Hence when this value is multiplied by the original divisor, it doesn't reproduce 360 exactly, though it's pretty close!

@ TitaniumRome

The commutative property is when a*b = b*a  for multiplication; or a + b = b + a for addition.

.

Alan  Jul 6, 2015

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