how to write a program to round numbers

Hi

how to write a proggram to round numbers whitout a prepared command in matlab like (round)

[Stephen23]

https://www.mathworks.com/matlabcentral/answers/38787-what-can-be-programmed-without-any-built-in-functions

Are you allowed to use logical comparisons? Type conversion?

[farid khalafi]

I want to write rounding program (in any way)

I want to know ... how round command works?

Answer 1

[Jan]

Rounding is the same as adding 0.5 and cropping the fractional part of the number.

For negative numbers you have to subtract 0.5.

To remove the fractional part, floor, ceil, fix and rem(x,1) can help.