Severity: Warning

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Filename: controllers/calculator.php

Line Number: 37

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If we provide a number then it gives us the number of significant figures.

We don’t count leading zeros because it is a non-significant number. The calculator gives proper answer in a scientific way. It usually rounds up the next digit if it is higher than 5 and round down if it is lower than 5 and if it is 5 it rounds up half the time and down half the time. This is usually based on the previous digit which can be either even or odd.

Find the significant figure for 542

Solution:

Since it does not have any 0(Zero) or any decimal after the Zero or before the Zero, we have 3 significant numbers.

0.00800:

Solution

Here we have three significant figures as 800 we don’t include the zero before the number 8 because it doesn’t precise the measurement.

5006

Solution:

5006: here we have 4 (four) significant digits because Zeros (0) between Two Digits are always significant.