I can't get the last three cases to work out. I've checked the answers a couple of different ways. I still get 26 1s in the binary for 10^100. Is there a defect in the solutions offered?
The test cases are correct. In case you are using dec2bin, it is subject to loss of significance.
Angle of triangle
Back to basics 11 - Max Integer
Angle between two vectors
Return the first and last characters of a character array
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