I got tired of solving these problems. So, I just wrote a solution that works for everything.
Is this matrix orthogonal?
CONVERT TAN TO SIN
Find vampire numbers
Too Many Zeros, Dump Them!
Stress-Strain Properties - 5
Stress-Strain Properties - 4
Radiation Heat Transfer — View Factors (5)
Divisible by 10
Divisible by 9
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