Find the sines of an isosceles triangle when given its area and height.
For example, when A=60 and h=5, the result is [0.3752 0.3752 0.6927].
This problem has been polished and additional test cases were added.
I believe all of the test solutions of this problem are wrong
I believe that this problem is fixed now.
I think there might still be some issues with the test suite, Grant. Currently, only test suites 1 and 3 have sum(arcsind(y_correct))=180 within a degree. For test suite 3, you need to take 180-arcsind(y_correct(3)) to get the sum to equal 180, but the sines of those two angles are still the same.
Please let me know if I am missing something - If you take the arcsin for the current answers for problem 2 (y_correct = [0.7174 0.7174 0.8608]), you get angles in degrees of [49.84 49.84 59.41], which does not add up to 180 degrees. If you take 180-59.41 to keep the sine of angle #3 consistent, you end up with a sum greater than 180 degrees. Since this example is two 3-4-5 right triangles joined together at the 4-side (since height=4 and Area=12), I think the answer for case 2 should be [0.8 0.8 0.96].
Yes, the test solutions are incorrect. If the height of the triangle is h, and if the sides are s, then the sine of the angle at the base is h/s. The test solutions have all calculated this as sin(h/s).
@William, Great catch! Thanks a lot. :)
Back to basics 11 - Max Integer
Rotate input square matrix 90 degrees CCW without rot90
Piecewise linear interpolation
Set a diagonal
Test Problem; Create a 5x5 array containing all ones
Select primes from the matrix.
Pointwise multiplication of vectors.
Find the sides of an isosceles triangle when given its area and height from its base to apex
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office