I am confused about which tense to use in presenting my results in a paper.
"In this study, we created a mathematical model of the herding behavior using the A-algorithm. The goal of this mathematical model is to allow the ..."
- Am I correct in using the past tense "created" in the first sentence?
- Notice that in the second sentence I shifted to "is" instead of "was".
When do we use past or present tense in the results portion of the paper? Your insights will be of great help.