Hi friends,

I am Jyoti from India. Hope you are all well and safe, here I am going to participate in the SEC S20 W3 contest: https://steemit.com/devwithseven/@alejos7ven/basic-programming-course-lesson-3-operations-esp-eng organised by @alejos7ven .

I have already learned C and C Plus Language Course so these lessons are very easy for me to learn but since it has been a long time it is very helpful for me to recall.

SOURCE

Operations

Give a brief summary of what arithmetic, comparison and logical operations are for.

Arithmatic operations are used to deal with mathematic calculation such as addition, subtraction, multiplication, division, percentage etc.

Arithmetic Operator

Operator	Operation	Usage
Addition +	Sum A and B	A + B = 23
Subtraction −	Difference of A and B	A − B = 17
Multiplication *	A multiplied by B	A * B = 60
Division /	Divides A by B	A / B = 6.666667
Percentage%	Reminder of the division	A % B = 2

Relational Operator(Comparison Operator)

Comparing two values ​​with each other is called Relational Operator.

Name	Operator	Description	Result
Less than	<	g=40g, s=80g(g<s)? Does that mean gold is less than silver?	true
Less than or equal	<=	g=30g, s=60g(g<=s)? Does that mean gold is less than silver? Or is there an equal-again?	is less. true
Greater than	>	g=20g, s=23g(g>s)? Does that mean gold is more expensive than silver?	is less. false
Greater than or equal	>=	g=35g, s=35g(g>=s)? Does that mean gold is more expensive than silver? Or is there an equal-again?	There is equal-again. true
Equal	==	g=68g, s=35g(g==s)?	Does that mean gold and silver are equal? No. false
Not equal	!=	g=68g, s=35g(g!=s)? So gold and silver are not equal? Yes. Both have different weights	true

Logical Operator

Evaluating two or more relational operators simultaneously is called a logical operator

All logical operators can be used to evaluate conditon simultaneously. Also can be used many times.

Name	Operator	Description	Result
AND	&&	p=70, d=75, g=3000, s=780((g<s) && (p>d))? That is, return true only if all conditions are true. otherwise return false	false
OR	OR	p=70, d=75, g=300, s=780((p>d) OR (g<s))? That is, return false only if all conditions are false. otherwise return true	true
NOT	!	g=20, s=23!(g>s)? When applying the logical not(!) operator with a condition, it will return false if the condition is true or if the condition is false, it will return	true

Note: In the second row "OR" operator code is "||" due to coding dificulties I typed OR instead of ||

Make a program that asks the user for 2 numbers and evaluates if both numbers are the same.

I 'll create a C program that asks the user for two numbers and evaluates if they are the same.

Here's a simple C program that accomplishes this task:

Step 1:

I use to C compiler to make this program, in the main function, I declare two variables of type double to store the numbers. I use double to allow for decimal numbers.
We can use printf to prompt the user to enter the first number, and we can use scanf to read the user's input and store it in number1. The % lf format specifier is used for reading double values.

We can use an " If-else statement" to compare the two numbers:

If number1 is equal to number2, print "The numbers are the same."

Otherwise, print "The numbers are different."

Step 2:

Step 3:

When I hit enter to execute the result, it shows the result as the two number are diffrent. So our coding is sucessful.

This application provides a basic command-line interface for entering and comparing two values. It works with both integers and decimals. It should be noted that comparing floating-point integers for exact equality might be difficult at times owing to accuracy difficulties, but this simple comparison will work for the majority of applications.

Transform the following mathematical expressions into arithmetic expressions on your computer:

Fine the value of X , Y and Z

X=8/2+5/5, Y= (8-2) (5+4), Z =( ((4+8)3))/2)/3

Here I use code to sovle the sum using arithmatic operations and found the value of X,Y and Z.

I would like to invite
@sur-riti
@max-pro
@abdullahw2

to take part in this contest.