Basically say i needed to write some code for some grades and say if the grades were:

• A: 90-100

• B:80-90

• C:70-80

How would i write an if statement with condition of the grade being between two numbers?

I find if-statements with one line of code in each condition annoyingly long for the task they perform. I came up with an alternative that works with most circumstances, and I was wondering if people think the following is acceptable code.

% Using if statements
if x>5
    y = x;
elseif x<5
    y = x^2;
else
    y = 10;
end
disp(y)

% Using ifs and nonzero
ifs = [x,x^2,10];
y = nonzeros(ifs(x>5,x<5,x==5));
disp(y)

The alternative is much shorter, and runs *slightly* faster, but is a little harder to read. Another example from a recent script is

% Using if statements
if nargin<3 || nargin>4
    error('Function requires 3 or 4 input arguments');
elseif n<2
    error('Number of segments must be at least 2');
elseif ~isinteger(n/2)
    error('Number of segments must be a multiple of 2');
end

% Using ifs and nonzero
ifs = error('Function requires 3 or 4 input arguments');
ifs = [ifs,error('Number of segments must be at least 2')];
ifs = [ifs,error('Number of segments must be a multiple of 2')];
nonzeros(ifs(nargin<3||nargin>4,n<2,~isinteger(n/2)))

Would using this method, with proper comments, be considered acceptable code, or would it just be too unusual for people to know how to read?

Thanks for your input.