Hi, I have some problem here,
case1, a=7, b=4, a/b = 1.75
case2, a=3, b=2, a/b = 1.5
I want variable "c" to become decimal value of a/b,
c = 0.75 (for case 1), and c = 0.5 (case 2)
wich matlab operation should I use?
MATLAB: Math operation
matlab operation
Related Solutions
And another solution:
A = [1 2 3 4 5]';B = [4 5 6 2 1]';index = B > A;C(index) = B(index) + A(index);nindex = ~index;C(nindex) = B(nindex) - A(nindex);And another one:
f = 2 * (B > A) - 1;C = B + f .* A;It returns the scalar C (maxtrix 1x1) such that
C*B ~ Ain the sense that
norm(C*B - A)^2 % or equivalently
sum((C*B - A).^2) is minimal.
Illustration:
>> sum((C*B-A).^2)ans = 5>> sum(((C+0.1)*B-A).^2) % move on the right
ans = 5.1600>> sum(((C-0.1)*B-A).^2) % move on the left
ans = 5.1600 >> ezplot(@(x) sum((x*B-A).^2), [-1 3]) % plot this function, that is a parabola minimum at x=1.25
>> xline(A/B)
Best Answer