Cody

Problem 2120. Rounding off numbers to n decimals

Solution 2040215

Submitted on 30 Nov 2019
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Test Suite

Test Status Code Input and Output
1   Fail
x = 1; n=1; y_correct = 1; assert(isequal(myround(x,n),y_correct))

Undefined function 'vpa' for input arguments of type 'double'. Error in myround (line 5) y=double(vpa(x, n+1)); Error in Test1 (line 4) assert(isequal(myround(x,n),y_correct))

2   Fail
x = pi; n=5; y_correct = 3.14159; assert(isequal(myround(x,n),y_correct))

Undefined function 'vpa' for input arguments of type 'double'. Error in myround (line 5) y=double(vpa(x, n+1)); Error in Test2 (line 4) assert(isequal(myround(x,n),y_correct))

3   Fail
x = 0.5*sqrt(2); n=6; y_correct = 0.707107; assert(isequal(myround(x,n),y_correct))

Undefined function 'vpa' for input arguments of type 'double'. Error in myround (line 3) y=double(vpa(x, n)); Error in Test3 (line 4) assert(isequal(myround(x,n),y_correct))

4   Fail
x = exp(1); n=9; y_correct = 2.718281828; assert(isequal(myround(x,n),y_correct))

Undefined function 'vpa' for input arguments of type 'double'. Error in myround (line 5) y=double(vpa(x, n+1)); Error in Test4 (line 4) assert(isequal(myround(x,n),y_correct))

5   Fail
x = 0.00123456; n=6; y_correct = 0.001235; assert(isequal(myround(x,n),y_correct))

Undefined function 'vpa' for input arguments of type 'double'. Error in myround (line 3) y=double(vpa(x, n)); Error in Test5 (line 4) assert(isequal(myround(x,n),y_correct))