can you help me to programming algorithm of x^n and n! ,and plotting in same figure

x^n=x*x.......... n fois

Answer 1

[Yatin]

Hi,

Below are the implementations for the factorial and the power functions. You can store the values from both the functions in an array at each step and then plot these on the same plot using the "plot" function twice. To plot on the same figure, you need to use the "hold" command.

function result = numFactorial(number)

if(number == 0 || number == 1)
    result = 1;
else
    result = 1;
    for index = 1: number
        result = result* index;
    end
end

end

function [result]  = pow(number, numPower) 

   if(numPower == 1)
      result = number;

   elseif(rem(numPower, 2) ~= 0)
       %a = getpowby2(number, (numPower-1)/2);
       a = pow(number,(numPower-1)/2);
       result = a*a*number;

   else
       %a = getpowby2(number, numPower/2);

       a = pow(number, numPower/2);
       result = a*a;

   end
  end

[ime sem]

thank you so much

Answer 2

[Vivek Selvam]

This may help you get started

doc hold
doc factorial
doc power

vectorization : http://www.mathworks.com/help/matlab/matlab_prog/vectorization.html

n      = 5;
x      = 2;
vector = 1:n;
plot(factorial(vector)); 
hold on
plot(power(x,vector));
% or the 2 plot commands can be integrated into 1 like below
% plot(vector,factorial(vector),vector,power(x,vector));

[ime sem]

thank you