%.nf

There is a set precision function in c++ for cout .

yeah but from I understood he wants a way to set the precision depending on runtime input

float pi = 3.1415926535897; int decimals = 2; printf("%.*f", decimals, pi);

yeah but this works for C

/getfreeprogrammingbook

Write a C programming to find the angle between (12:00 to 11:59) the hour hand and the minute hand of a clock. The hour hand and the minute hand is always among 0 degree and 180 degree. For example, when it's 12 o'clock, the angle of the two hands is 0 while 3:00 is 45 degree and 6:00 is 180 degree. Can somebody please tell me the logic?

Its just math

Tell then

Tell then

Its just simple math tbh

Math is (360 deg /60 min) *(12:00-11:59)

How so....

Ya, or you can calculate the angles and then find the diff

Write a C programming to find the angle between (12:00 to 11:59) the hour hand and the minute hand of a clock. The hour hand and the minute hand is always among 0 degree and 180 degree. For example, when it's 12 o'clock, the angle of the two hands is 0 while 3:00 is 45 degree and 6:00 is 180 degree. Can somebody please tell me the logic?

Write a C programming to find the angle between (12:00 to 11:59) the hour hand and the minute hand of a clock. The hour hand and the minute hand is always among 0 degree and 180 degree. For example, when it's 12 o'clock, the angle of the two hands is 0 while 3:00 is 45 degree and 6:00 is 180 degree. Can somebody please tell me the logic?

Write a C programming to find the angle between (12:00 to 11:59) the hour hand and the minute hand of a clock. The hour hand and the minute hand is always among 0 degree and 180 degree. For example, when it's 12 o'clock, the angle of the two hands is 0 while 3:00 is 45 degree and 6:00 is 180 degree. Can somebody please tell me the logic?

1) You can calculate angle (from 0:00) of the hour hand. To do that you just divide 360 by 12 and multiply by your 12hr time in hours (e.g. 8:30 becomes 8.5f, 9:20 becomes 9.33f). To make hours 12hr from 24hr, just substract 12 if it's greater or equal to 12:00. 2) You can calculate angle (from 0:00) of the minute hand almost the same way. You take your minutes of the current hour and do the same math. Minutes * 360 / 60. It's called linear interpolation (lerp) by the way. 3) you have two angles, you find the difference and take absolute value from it Any questions?

Holy errors batman (I added some suggested modifications)

How 9:20 became 9.33?

We want to display rectangles ( 4 cm width * 3 cm hieght). The input is the number of the required rectangles. Display them as the following: Three rectangles in each row. Each row will be 14 cm because we separate rectangles by 1 cm and so the rows. It must be solved by a mathematical equation to display the rectangles automatically.

Any idea?

We want to display rectangles ( 4 cm width * 3 cm hieght). The input is the number of the required rectangles. Display them as the following: Three rectangles in each row. Each row will be 14 cm because we separate rectangles by 1 cm and so the rows. It must be solved by a mathematical equation to display the rectangles automatically.

Have you tried your hands on printing star patterns ?

I think you didn't like my program. It doesn't matter a lot. It is not my best. What matters is: can you find the magic math equation that solves something like this? While someone said that it is simple enough for 9th grade students.

Do you think you already know C++?

Do you think you already know C++?

Bro you ever hear of error 577329984%478?

😅if someone thinks it, it means he doesn't know anything 🤣🤣

I have 6 year s experience on c++, but i don't know about c++

I can't learn this))) 😅

OS development? Proprietary or any free one?

Atomic type can solve race conditions?

We should continue it in OT group 😊if you want

Atomic type can solve race conditions?

It depends. Sometimes yes, sometimes no

Atomic solves race condition on this current variable.

Yesterday, at 1 o'clock you entered

Yeah, i've seen it, but i didn't understand the purpose

The purpose is speaking other things like for example, OS dev and etc. Except, c c++

I see, thx for clarification 👍

If i put struct into atomic type?

what does undefined reference to `[vtable or typeid] for [classname]` mean

so all virtual funcs must be declared, which i've done