I know the derivative of tanh(x) = sech^2(x) but if I want to derivative of a value that's already been through tanh(x) then it 1 - tanh^(x); How does one compute what the derivative will be the value has been through the original function ? Like how do I get to; 1 - tanh^(x);

i guess so

I know the derivative of tanh(x) = sech^2(x) but if I want to derivative of a value that's already been through tanh(x) then it 1 - tanh^(x); How does one compute what the derivative will be the value has been through the original function ? Like how do I get to; 1 - tanh^(x);

so 1 / cosh(0.5^2) = 1 / cosh(tanh(0.5)^2) ?

#include <unistd.h> #include <sys/file.h> technically any program I make using these should also compile on POSIX / BSD systems ?

afaik <sys/file.h> is not part of POSIX, so technically speaking no

Posix does not require this file to be present tho, I know QNX provides it for compatibility reasons

ah nice ! blackberry ?

Why using gets() function is dangerous..?

If buffer is of 10 bytes and user input is more than 10 bytes than gets simply take the user input and store it into buffer and it will give rise to segmentation fault

You can use fgets instead of gets

And compile it using gcc

I just heard about intel CCP is it good

I never used it and never heard of it

And compile it using gcc

And compile it using

Cmd?

gcc file_name.c -o file_name

gcc file_name.c -o file_name

-o file_name is optional Only if you want to the exe file to be of specific name If you don't use -o it will give output a.exe as default

I just heard about intel CCP is it good

#include <stdio.h> int main() { int x,y; printf("Write integer between 0 and 50: "); scanf("%i", &x); printf("Write integer between 60 and 100: "); scanf("%i", &y); printf("%i + %i = %i\n", x,y,x+y); return x+y; }

Cab anyone suggest me an easy c compiler like turbo

You don't need it

What additional condition should I add so that x and y cannot get a value greater or less than what printf says?

still i haven't learned this statement, can you teach how to use it and for what should i use it, please

#include <stdio.h> int main() { int x,y; printf("Write integer between 0 and 50: "); scanf("%i", &x); printf("Write integer between 60 and 100: "); scanf("%i", &y); printf("%i + %i = %i\n", x,y,x+y); return x+y; }

Clion the best)

scanf.... if (x > 50 || x < 0) return -1; printf.... scanf.... if (y < 60 || y > 100) return -1;

It's not better to write it in one if statement then 2?

scanf.... if (x > 50 || x < 0) return -1; printf.... scanf.... if (y < 60 || y > 100) return -1;

It's not better to write it in one if statement then 2?

I just like to use 2 if Statements so I can terminate right then and there.

oh great another math question that I want to kill my self..."⦁ Write a function that receives 4 coordinates that represent 2 points and returns the distance between them. The formula for the distance between 2 points is:"

Create an array and pass it to the function

they don't want us yet to do arrays, they gave me the answer but I don't understand it

that's what they want me to do... I'm trying to understand the logic...

Hi , I am passing cmd args as --abc '{"a"}' and cmd treats args as --abc \{\"a\"\}. Why this behave like above? Thanks!