MATLAB code find factorial of n num

can you please Write a MATLAB code to Find factorial of a given number N?

[KSSV]

You search in google/ mathworks you will get plenty...

What have you tried?

[Murathan Cuya]

ı need n as a input. ı searvched and saw some explains but ı didnt like them. ı really am new about this. ı dont want factorial(n). ı want a independed place from the function to put inputs.

[Steven Lord]

BTW the factorial function is already part of MATLAB, see factorial.

Answer 1

[Nipun Agarwal]

Hey,

The factorial of a number is calculated as

F(n) = (n-1)*(n-2)*(n-3)…….1 and F(0) = 1 always;

So we start from the right most side like F(p) where p = 1 initially and keep incrementing the value of p till n; The resultant value is your answer. I have written the function with variable n. replace n with any integer to get its factorial number;

Attaching the code for your reference.

function fact = factorial(n)
    fact = 1; %base case, for F(0);
    for i = 1:n %looping through values from 1 : n to multiply each value;
        fact = fact*i; %multiplying with our previous values.
    end
end

The fact will have your desired factorial of the integer you called function with.

[Walter Roberson]

Factorial starts with n* not (n-1)* . The code has it right.

Answer 2

[ANSHU PRIYA]

okh so we are intresting in to finding the value of 7 factorial

programming:-

%calculation  of factorial
n=7;
factvalue=1;
for i=1:7
    factvalue=factvalue*i
end

[Walter Roberson]

Why bother assigning to n if you are not going to use it?

[ANSHU PRIYA]

its obvious !because the notation of factorial are denoted by n!

here we are finding the value of n! where n=7.

thats why we assinginf here n=7

[Walter Roberson]

So if I coded

%calculation  of factorial
n=7;
factvalue=1;
for i=1:9
    factvalue=factvalue*i
end

then afterwards factvalue would hold n! = 7! ? Or would it hold 9! ? Where is the connection between the value of n and the value calculated?

Answer 3

[Ahmet Zahit Akpinar]

I made it for 10! but you can change 10 by any value

n=1; i=1;
while i<=10
    n=n*i;
    i=i+1;
    fprintf('n=%d\n')
end

[DGM]

What is the point of printing a bunch of instances of "n=" repeatedly to console? Why is anything printed in the loop? Why use a while loop instead of a for loop?

What's wrong with

n = 10; % isolate the parameter

result = 1;
for k = 1:n
    result = result*k;
end
result

result = 3628800

... or just

result = prod(1:n)

result = 3628800

... or, you know

result = factorial(n)

result = 3628800

Answer 4

[Darya]

n=input('n=')
if n>=0&&n==fix(n)
    f=1;
    for i=2:n
        f=f*1;
    end
else
    disp('ererr')
end
f

[Walter Roberson]

f=f*1;

No, it should be

f=f*i;

Answer 5

[Hugo]

hecho de función = factorial(n)

hecho = 1; % caso base, para F(0);

for i = 1:n %recorriendo valores de 1:n para multiplicar cada valor;

hecho = hecho*i; %multiplicando con nuestros valores anteriores.

fin

fin hecho = 1; % caso base, para F(0); for i = 1:n %recorriendo valores de 1:n para multiplicar cada valor; hecho = hecho*i; %multiplicando con nuestros valores anteriores. finfin

[Walter Roberson]

"fin" is not used in MATLAB