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rewrite description

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Hamza elkhatri 2022-06-28 15:12:16 +01:00 committed by Dav Hojt
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subjects/getarea/README.md
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@ -1,13 +1,12 @@
## get-area
### instructions
### Instructions
Write a program that takes a positive number as radius and prints the area of a circle.
- The area of the circle is `3.14` times the radius squared.
- Only positive numbers will be accepted, otherwise print `Error` followed by (`'\n'`)
- if the number of arguments is not `1` print (`'\n'`)
- Write a program that takes a number and prints the area of the circle.
- The area of the circle is `π` times the radius squared.
- if the number is not positive or is not a number, print `Error` followed by (`'\n'`)
- if the number is positive, print the area of the circle followed by (`'\n'`)
- if the number of arguments is not `1` print (`'\n'`)
- You may assume that the value of `π` is 3.14
### Usage
@ -15,7 +14,7 @@
$ go run . | cat -e
$
$ go run . 10 | cat -e
315$
314$
$ go run . 4 | cat -e
50$
$ go run . -10 | cat -e