How can I evaluate elements in an array individually. Typing in a range of eg -2:2 the negative elements are being evaluated at an incorrect condition (1st elseif condition). What is the problem

function [volume] = vol(h)
%Function computes the volume of a tank in the shape of a cylinder (h=10) at the bottom and a
%frustrum (h=5) above it
h = input ('Type height range here');
for c = h
    if c <= 0         %If h is negative or 0 return zero for volume
        volume = h.*0;
    elseif (0 < c) && (c <= 10)                %If h is the range of the cylinder height compue volume using the formula
        volume = 16*pi.*h;  
    elseif (10 < c) && (c <= 15)                     %If h is not in range of cylinder height, add max cylinder volume to frustrum volume
        volume = 160*pi + (8/3)*pi*(((h./2-1).^3)- 64)./4;
    elseif (c > 15)                             %Otherwise if h is above h max for tank return max volume for tank at h=15
        h=(h.*0 + 15);
        volume = 160*pi + (8/3)*pi*(((h/2-1).^3)- 64)./4; (2nd els
    else
        disp('Please type in an acceptable value')
    end
end

Answer 1

[madhan ravi]

elseif (c > 0) && (c <= 10) 
elseif (c > 10) && (c <= 15) 

[Eddy Wekesa Wanyonyi]

I don't think change in arrangement of the expression solved the problem