Math and Arithmetic
How many significant figures do 1.001 and 1.000 possess?
The two numbers mentioned in the question have four significant
figures (often called significant digits). If you wish to check
your knowledge of sig-digs, check out the following link:
Asked in Sony PSP
Is the PSP 1000 charger compatible with the PSP 1001?
What is the highest common factor of 1000 and 1001?
What is the 1st 5 numbers in the binary system?
Asked in Math and Arithmetic
How many significant digits in 1001?
4. The idea of "SigFigs" is that "is the number rounded off?" If someone says that there are 1000 ounces in a bucket, you can figure that they could be rounding off to the nearest hundred, or even to the nearest thousand (it could be 700 and just look like 1000.) If they say there are 1001, you have more confidence that they are exact to all 4 digits. 1001 is not going to be a round-off of anything short of being rounded to the nearest unit, so all digits from the unit going left are significant. Follow this rule. Going from the decimal point to the left, any zeros are NOT significant until you hit a non-zero. In this case, the first number you hit going left is the 1, so all digits are significant. Note, any zeroes to the right of a decimal are all significant, since 25.00 gives more information than just 25. ■
Asked in Numbers
Find the sum of the integers 1 to 1000?
This kind of question is frequently asked and easily solved. 1 + 1000 = 1001 2 + 999 = 1001 3 + 998 = 1001 You can see the developing pattern here. Taking integers in order from the top and bottom of the list allows you to create hundreds of equal sums. The last such sum that can be made is 500 + 5001 = 1001. It is clear that you then have 500 sums, each equal to 1001. 1001 X 500 = 500,500 which is the sum of all the integers combined.