If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total. Write a function called number2letters that returns the number of letters needed to write down the number n in

function  t=number2letters(n)
    number2letters(1)=3;
  number2letters(2)=3;
  number2letters(3)=5;
  number2letters(4)=4;
  number2letters(5)=4;
  number2letters(6)=3;
  number2letters(7)=5;
  number2letters(8)=5;
  number2letters(9)=4;
  number2letters(13)=3;
  number2letters(11)=6;
  number2letters(12)=6;
  number2letters(13)=8;
  number2letters(14)=8;
  number2letters(15)=7;
  number2letters(16)=7;
    number2letters(17)=9;
  number2letters(18)=8;
  number2letters(19)=8;
  number2letters(20)=6;
  number2letters(30)=6;
  number2letters(40)=5;
  number2letters(50)=5;
  number2letters(60)=5;
  number2letters(70)=7;
  number2letters(80)=6;
  number2letters(90)=6;
    number2letters(100)=10;
    number2letters(200)=10;
    number2letters(300)=12;
    number2letters(400)=11;
    number2letters(500)=11;
    number2letters(600)=10;
    number2letters(700)=12;
    number2letters(800)=12;
    number2letters(900)=11;
    for n=(1:999)
    if (2<= log10(n))&& (log10(n)<3)
        b=floor(x/100);
        c=fix(mod(x,100)/10);
        d=mod(mod(x,100),10);
        t=number2letters(b)+10+number2letters(c)+number2letters(d);
      elseif (1<= log10(n))&& (log10(n)<2)
          c=fix(mod(x,100)/10);
          d=mod(mod(x,100),10);
          t=number2letters(c)+number2letters(d);
    else
            t= number2letters(n);
    end
    end
end

[madhan ravi]

Can you also post the input n?

[Lisa SU]

I don't know what's wrong with my code. Please help me.

[Lisa SU]

post the input n?

[Stephen23]

Lisa SU's "Answer" moved here:

I have modified my code, but there's still something wrong.

function  t= number2letters(n) 
    number2letters(1)=3;
  number2letters(2)=3;
  number2letters(3)=5;
  number2letters(4)=4;
  number2letters(5)=4;
  number2letters(6)=3;
  number2letters(7)=5;  
  number2letters(8)=5;
  number2letters(9)=4;
  number2letters(13)=3;
  number2letters(11)=6;
  number2letters(12)=6;
  number2letters(13)=8;
  number2letters(14)=8;
  number2letters(15)=7;
  number2letters(16)=7;
    number2letters(17)=9;
  number2letters(18)=8;
  number2letters(19)=8;
  number2letters(20)=6;
  number2letters(30)=6;
  number2letters(40)=5;
  number2letters(50)=5;
  number2letters(60)=5;
  number2letters(70)=7;
  number2letters(80)=6;
  number2letters(90)=6;
    number2letters(100)=10;
    number2letters(200)=10;
    number2letters(300)=12;
    number2letters(400)=11;
    number2letters(500)=11;
    number2letters(600)=10;
    number2letters(700)=12;
    number2letters(800)=12;
    number2letters(900)=11; 
    if (2<= log10(n))&& (log10(n)<3)
        b=floor(n/100);
        c=fix(mod(n,100)/10);
        d=mod(mod(n,100),10);
        t =number2letters(b)+3+number2letters(c)+number2letters(d);
      if (1<= log10(n))&& (log10(n)<2)
          c=fix(mod(n,100)/10);
          d=mod(mod(n,100),10);
          t =number2letters(c)+number2letters(d);
      else
          t = number2letters(n);
      end
    end
end

[Stephen23]

@Lisa SU: do NOT name any variable inside the function with the same name as the function itself. This is a guaranteed path to confusing code and strange bugs.

@madhan ravi: perhaps n=5 for the example given in the question, but I agree that this is not really very clear: is the function supposed to calculate the sum from 1:n, as the example shows, or just for n?

[madhan ravi]

@Stephen cobeldick thank you neither do I understand the question.According to what I understand is for example n = 5 when this function is called the output should be 4 because it consists of four letters. I have a clue that it has something to do with strings or cells because inputs are characters such as five.

Answer 1

[Pierre845]

Do a Switch .. Case it will be much cleaner.

Also, your function cannot work as you need conditional statements (if .. elseif ..)

function result = number2letters(n) switch n case 1 result = 3; case 2 result = 3; case 3 result = 5; % etc .. end

[Lisa SU]

Excuse me，I can't understand 'switch n case 1 result = 3; case 2 result = 3; case 3 result = 5; % etc .. end'.