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how to generate random number

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ueqweoıqwueoq on 8 Mar 2024
Answered: Hassaan on 8 Mar 2024
k = 3;
randomNumbers = randi([1, 2], [1, k])
randomNumbers =
1 1 1
I wrote this, but I need decimal numbers from smallest to largest between 1 and 2. What should I do for it?

Answers (2)

Dyuman Joshi
Dyuman Joshi on 8 Mar 2024
randi only generates integers. Use rand instead.
rand() generates numbers in the range (0,1). Get the desired range by modifying it accordingly -
y = rand(1,k) + 1
y = 1×3
1.0964 1.6433 1.6246
John D'Errico
John D'Errico on 8 Mar 2024
From small to large? Nothing stops you from sorting the numbers after you generate them.
help sort
SORT Sort in ascending or descending order. B = SORT(A) sorts in ascending order. The sorted output B has the same type and size as A: - For vectors, SORT(A) sorts the elements of A in ascending order. - For matrices, SORT(A) sorts each column of A in ascending order. - For N-D arrays, SORT(A) sorts along the first non-singleton dimension. B = SORT(A,DIM) also specifies a dimension DIM to sort along. B = SORT(A,DIRECTION) and B = SORT(A,DIM,DIRECTION) also specify the sort direction. DIRECTION must be: 'ascend' - (default) Sorts in ascending order. 'descend' - Sorts in descending order. B = SORT(A,...,'MissingPlacement',M) also specifies where to place the missing elements (NaN/NaT/<undefined>/<missing>) of A. M must be: 'auto' - (default) Places missing elements last for ascending sort and first for descending sort. 'first' - Places missing elements first. 'last' - Places missing elements last. B = SORT(A,...,'ComparisonMethod',C) specifies how to sort complex numbers. The comparison method C must be: 'auto' - (default) Sorts real numbers according to 'real', and complex numbers according to 'abs'. 'real' - Sorts according to REAL(A). Elements with equal real parts are then sorted by IMAG(A). 'abs' - Sorts according to ABS(A). Elements with equal magnitudes are then sorted by ANGLE(A). [B,I] = SORT(A,...) also returns a sort index I which specifies how the elements of A were rearranged to obtain the sorted output B: - If A is a vector, then B = A(I). - If A is an m-by-n matrix and DIM = 1, then for j = 1:n, B(:,j) = A(I(:,j),j); end The sort ordering is stable. Namely, when more than one element has the same value, the order of the equal elements is preserved in the sorted output B and the indices I relating to equal elements are ascending. Examples: % Sort a vector in ascending order sort([0 3 1 0 2 0 1 6]) % Sort each column or row of a matrix A = [3 7 5; 0 4 2] B1 = sort(A,1) % sort each column B2 = sort(A,2) % sort each row % Sort complex numbers according to their real part A = [1+1j ; 1-1j ; -2-2j ; 0 ; -2+2j] B = sort(A,'ComparisonMethod','real') See also ISSORTED, SORTROWS, MIN, MAX, MINK, MAXK. Documentation for sort doc sort Other uses of sort categorical/sort RandStream/sort codistributed/sort string/sort datetime/sort sym/sort duration/sort symbolic/sort fixedpoint/sort tabular/sort gpuArray/sort tall/sort parallel.internal.types.SettingsLevel/sort

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Hassaan on 8 Mar 2024
k = 3;
randomNumbers = 1 + rand(1, k); % Generate k random numbers between 1 and 2
randomNumbersSorted = sort(randomNumbers); % Sort numbers from smallest to largest
1.1909 1.2096 1.4468
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It's important to note that the advice and code are based on limited information and meant for educational purposes. Users should verify and adapt the code to their specific needs, ensuring compatibility and adherence to ethical standards.
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