Cody

# Problem 47. Extract leading non-zero digit

Solution 1793483

Submitted on 19 Apr 2019 by Parker Sheaffer
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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))

s = '1.00e+02 2.30e+01 3.40e+01 5.00e-03 4.67e-01 5.55e-01 1.00e+00 1.35e+05 ' 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))

s = '5.70e+01 2.00e-01 8.91e+03 6.30e+01 8.38e-01 ' 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))

s = '4.34e-01 3.43e-01 3.58e+00 2.77e+00 1.35e+00 ' 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))

s = '3.00e-01 1.00e-01 2.00e-08 5.00e-01 2.00e-03 ' y = 3 1 2 5 2