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i didnt understand
???????????????????

what happens with the chat?

what is the target of pointer to function?
when do i use pointer to function?

ok :) :) :)

but algorithm have aconnection to programming

where can i ask a questions about algorithms?
because i dont want to do a mistakes. :)

what is the factorial uses?
what does factorial do?

thanks a lot to all of you

anyone can answer to my question?

thank you two.
but i have a question about the same subject:
1. if i put an integer number a char variable so the number will become a character(ASCII)?

so if i understood well char array can contains char and integer but isdigit() finds if its number if number it returns true.
and the second function changes the digit to normal integer number.
am...

i didnt find there nothing i wanted.
i will explain my problem with more details:
i am doing a program that solves a math exercises with order of arithmetic operations for example:...

how can i check if the user typed a number(int) or a char?
maybe there is a function or something?

how many.

how can i find how many combinations(possibilities) can i do from the numbers that i get.
for example i get 1,2,3 so the combinaions is: 1,3,2 3,1,2 3,2,1
......(there is more)
you have to use...

2*(7+5*(4-5)+(11-1))
2+2*(11-3)
10-45*(7+8-(8+0-(9-8+(11-5))))
.........

but there is infinity cases.

anyone can answer to my question? please

Ok i will explain here with more details.
im doing a program that receive an math exercise to linked list(every sign in NODE).
The program will solve this math Ex by using order of arithmetic...

but in my algorithm could be many cases:
2*(3+4*(3+5-(11+0)+(0+0)))
or
2*7-(11+4)
and a lot of more so how can i assume facility if i have so many cases?
please help me understand.
thanking you...

how can i perform a mathematical proof?

I built an order of arithmetic operations algorithm and i want to ask something before I am writing this algorithm in the compiler:
How can i be sure that my algorithm works in every case,
in a...