Then maybe not. The CE majors from 2015-16 or earlier had a different Math Elective requirement, see the 2015-16 CE Major requirements. It says:

Mathematics Elective (3 hours) (CE majors, 2015-16) Choose one course from MATH 526, MATH 527, MATH 544 or CSCE 561. Other courses in linear algebra or numerical analysis may be substituted with permission of the department.

So, if you use an older curriculum you can take one of those your CE Math elective. But, this is not recommended. The old MATH 526 is now MATH344+344L. We recommend you take MATH344+344L.