#
Significant Figures

##
Basic Concept

In making measurements, chemists need to be accurate, but almost any
measurement has limits to its precision. The digits in measurement
that are known to be precise, along with a final digit with
uncertainty, are known as significant figures. Significant figure is
a very important concept in chemical calculation. This module covers
the basic concept and significant figures conversion.

##
Feature Overview

This module outputs any decimal with correct significant number as
specified. It also carry out algebraic operation with significant numbers.

##
User Instructions

Click on the **Significant Figures**
tab in the Basics of Chemical Calculation module to open it.

####
1. Get Significant Figure

*This calculates
the number of significant figures in any given number.*

Enter a number and Click **Get**
button to obtain result.

####
2. Round-Off

*This rounds off
any given number according to the number of significant figures given.*

Enter a number in the first box and # of significant figures in the
second box and click on **Round**
button, the box on the right will output the result of the round-off operation.

####
3. Addition

*This allows
addition of two numbers and outputs the result in the form with
proper significant figure.*

Enter two numbers to be added together and click **=**
to get the result.

####
4. Subtraction

*This allows
subtraction of two numbers and outputs the result in the form with
proper significant figure.*

Enter two numbers for subtraction in order and click **=**
to get the result.

####
5. Multiplication

*This allows
multiplication of two numbers and outputs the result in the form with
proper significant figure.*

Enter two numbers for multiplication and click **=**
to get the result.

###
6. Division

*This allows
division of two numbers in order and outputs the result in the form
with proper significant figure.*

Enter two numbers for division in order and click **=**
to get the result.