![]() Due to the inexact representation of floating-point numbers on a computer, real (or complex) inputs may lead to unexpected results. Limitations Arguments X and Y should be integers. You can also debug M-files in the command window. The > symbol indicates that the program can process the values you assigned to the variables. It’s prompt is indicated by two right-facing double angle quotation marks. X and y are congruent (mod m) if and only if mod(x,m) = mod(y,m). The MATLAB command window is the section wherein you will enter data, run functions, and other MATLAB files. Evaluate MATLAB commands, create and edit files, view results, acquire data from sensors. The mod function is useful for congruence relationships: Connect to MATLAB from your Android smartphone or tablet. Remarks So long as operands X and Y are of the same sign, the function mod(X,Y) returns the same result as does rem(X,Y). mod(X,Y) always differs from X by a multiple of Y. ![]() Returns the remainder X - Y.*floor(X./Y) for nonzero Y, and returns X otherwise. Modulus (signed remainder after division) The simplest solution would be to round your numbers yourself (unless you can use something like decimal.Decimal, but this means you should forgo native doubles entirely, including literals) and reproduce MATLAB's mod that way, assuming that makes sense for your use cases.Mod (MATLAB Function Reference) MATLAB Function Reference So MATLAB goes out of its way to do some magic with the floating-point results. This suggests that when x/y is close to an integer then it's rounded first, rather than being truncated like in python. Within roundoff error of an integer, then n is that integer. At FAU MoD Research Center for Mathematics of Data at Friedrich-Alexander-Universitt Erlangen-Nrnberg, we are glad to invite. mod (MATLAB Functions) The mod function is useful for congruence relationships: x and y are congruent (mod m) if and. In the language of mathematics, the 2 numbers are called dividend (one which + Read More. MATLAB mod function is used to find the remainder when 2 numbers are divided. If y is not an integer and the quotient x./y is Complete Guide to Matlab Mod with Syntax and Examples. Now here's help mod from MATLAB: MOD(x,y) returns x - floor(x./y).*y if y ~= 0, carefully computed toĪvoid rounding error. One can easily prove that these two numbers are indeed the same within double precision: > print(6/Decimal('0.05') - 6/Decimal(0.05)) The first number is what you'd first get with 6/0.05, but the number 119.9999999999999933386618522 gets rounded to the nearest number representable with double precision, and this is 120. ![]() How to find modular multiplicative inverse in c++. The concept of remainder after division is not uniquely defined, and the two functions mod and rem each compute a different variation. Modular multiplicative inverse function doesnt work for negative numbers. print(6/Decimal(0.05)) # exactly approximate matlab mod() function gives wrong answers. Some proof: > from decimal import Decimal So long as operands X and Y are of the same sign, the function mod(X,Y) returns the same result as does rem(X,Y). However, it's ever so slightly smaller than 120, so explicit floor division will truncate that number to 119 before it could be normalized to 120.0. The inputs X and Y must be real arrays of the same size, or real scalars. within the resolution of double precision) that it gets rounded to 120.0. The floating-point result of 6/0.05 is close enough to 120 (i.e. This is the core of the problem, in python: > 6/0.05 = 120
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