All three rounding functions are useful in their own right, so be sure to try to remember them all. my cod is: Simread ('image0286. As you cannot order six and a half coaches, what do you do? The solution is simple: in situations like this, you use ceil(). 2 please, any one help me to trunct the integer number from real number without any round to nearest integers in matlab ,e.g: if i have 255/643.98 I need just 3 not 4. If D is a numeric vector, matrix, or multidimensional array, then binStr is a two-dimensional character array. The output argument binStr is a character vector that represents binary digits using the characters 0 and 1. Where is the problem? Well, the actual result of 1000 / 160 is 6.25 - you need six and a quarter coaches to transport 1000 people, and you will only have ordered six because round() rounded towards 6 rather than 7 because it was closer. The default number of decimals is 0, meaning that the function will return the nearest integer. Description example binStr dec2bin (D) returns the binary, or base-2, representation of the decimal integer D. You need to figure out how many coaches you need to hire, so you take the number of people, 1000, and divide it by the capacity of your coaches, 160, then round it to get a whole number, and you find the result is 6. Create a vector of decimals that have ties, that is, decimals with a fractional part of 0.5 (within roundoff error). Imagine you were organising a big trip to the countryside, and 1000 people signed up. The last example, $f, is a common situation encountered by people using round(). That is, if our number were 4.12344, rounding to four decimal places would give us 4.1234, but because the fifth digit is a 5, which is always rounded up, we find ourselves with 4.1235 instead. Note that in line five we get 4.1235 when rounding to four decimal places, because PHP looks one digit further to decide on the last digit. Line four has parameter two being used for the first time, which shows that it is very easy to round to a given number of decimal places. where b is the recurring number and p is the amount of digits. As I am not that confident with the syntax you could try something like. If a number is exactly half way between two integers, round() will always round up.Īs you can see, 4.5 is rounded up to 5, whereas 4.4999 is rounded down to 4. Question: Matlab code function floatdecimaltobinstr(a,n,k) a: decimal expression of the number to be converted. num pi // for example str num2str (num,'0.15f') // string representation with 15 decimal digits str str (find (str'.')+1:end) // keep only digits after decimal point a base2dec (reshape (str,5, ). As Matlab is just a numerical software this is a senseless question because with machine precision recurring decimals are uninteressting. The other function available is round(), which takes two parameters - the number to round, and the number of decimal places to round to. The only difference is with negative numbers, where floor() will round -4.5 down to -5 whereas typecasting would return -4. Author's Note: The floor() function converts a floating-point number to an integer in roughly the same way as typecasting, except typecasting is faster.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |