Problem 189. Sum all integers from 1 to 2^n

Solution 1160571

Submitted on 12 Apr 2017 by yao gang

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Test	Status	Code Input and Output
1	Pass	x = 7; y_correct = 8256; assert(isequal(sum_int(x),y_correct)) ans = 8256
2	Pass	x = 10; y_correct = 524800; assert(isequal(sum_int(x),y_correct)) ans = 524800

Test

Status

Code Input and Output

Pass

x = 7; y_correct = 8256; assert(isequal(sum_int(x),y_correct))

ans = 8256

Pass

x = 10; y_correct = 524800; assert(isequal(sum_int(x),y_correct))

ans = 524800