Cody

# Problem 47. Extract leading non-zero digit

Solution 1202519

Submitted on 1 Jun 2017 by Ayanle Aden
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [100 23 -34 0.005 -0.466664 -0.555 1 134534]; y_correct = [1 2 3 5 4 5 1 1]; assert(isequal(leadingDigit(x),y_correct))

StdPow = 2 YPrime = 1 YPrimePrime = '1' y = 1 StdPow = 1 YPrime = 2.3000 YPrimePrime = '2.3' y = 1 2 StdPow = 1 YPrime = 3.4000 YPrimePrime = '3.4' y = 1 2 3 StdPow = -3 YPrime = 5 YPrimePrime = '5' y = 1 2 3 5 StdPow = -1 YPrime = 4.6666 YPrimePrime = '4.6666' y = 1 2 3 5 4 StdPow = -1 YPrime = 5.5500 YPrimePrime = '5.55' y = 1 2 3 5 4 5 StdPow = 0 YPrime = 1 YPrimePrime = '1' y = 1 2 3 5 4 5 1 StdPow = 5 YPrime = 1.3453 YPrimePrime = '1.3453' y = 1 2 3 5 4 5 1 1

2   Pass
x = [57 -0.2 8913 -63 0.838127]; y_correct = [5 2 8 6 8]; assert(isequal(leadingDigit(x),y_correct))

StdPow = 1 YPrime = 5.7000 YPrimePrime = '5.7' y = 5 StdPow = -1 YPrime = 2 YPrimePrime = '2' y = 5 2 StdPow = 3 YPrime = 8.9130 YPrimePrime = '8.913' y = 5 2 8 StdPow = 1 YPrime = 6.3000 YPrimePrime = '6.3' y = 5 2 8 6 StdPow = -1 YPrime = 8.3813 YPrimePrime = '8.3813' y = 5 2 8 6 8

3   Pass
x = [-0.4336 0.3426 3.5784 2.7694 -1.3499]; y_correct = [4 3 3 2 1]; assert(isequal(leadingDigit(x),y_correct))

StdPow = -1 YPrime = 4.3360 YPrimePrime = '4.336' y = 4 StdPow = -1 YPrime = 3.4260 YPrimePrime = '3.426' y = 4 3 StdPow = 0 YPrime = 3.5784 YPrimePrime = '3.5784' y = 4 3 3 StdPow = 0 YPrime = 2.7694 YPrimePrime = '2.7694' y = 4 3 3 2 StdPow = 0 YPrime = 1.3499 YPrimePrime = '1.3499' y = 4 3 3 2 1

4   Pass
x = [0.3000 -0.1 -0.00000002 0.5 0.002]; y_correct = [3 1 2 5 2]; assert(isequal(leadingDigit(x),y_correct))

StdPow = -1 YPrime = 3.0000 YPrimePrime = '3' y = 3 StdPow = -1 YPrime = 1 YPrimePrime = '1' y = 3 1 StdPow = -8 YPrime = 2 YPrimePrime = '2' y = 3 1 2 StdPow = -1 YPrime = 5 YPrimePrime = '5' y = 3 1 2 5 StdPow = -3 YPrime = 2 YPrimePrime = '2' y = 3 1 2 5 2