Make a calculator in C programming language You can take 2 approaches

• first - closer to the desktop apps, where after running the program, you write <number> <space> <operator> <space> <number>
• second - you utilise argc and argv to write the number and operand while executing ./calculator

First tier

• enum + switch, parsing the operator while removing whitespace around it
• float parsing (atoi)

Second tier

• Proper float operations, check in most languages, what happens with 0.1 + 0.2. Utilise libc strtof and strtod