Arithmetic Sequences

In Zoom Math 200 and above, you can calculate the sum of an arithmetic sequence. For example, Zoom Math can calculate the answer to 1+3+5+…+99. To type that problem, type it exactly the way it looks, including the three dots.

Zoom Math can’t do much else with arithmetic sequences, at least not directly. For example, if you want to know the 20th term in the sequence 1, 3, 5, …, Zoom Math can’t calculate that for you. It doesn’t know the formula.

Of course, Zoom Math is good with equations, so if you type in the formula yourself, Zoom Math can solve it for you. For arithmetic sequences, you can always use the formula t = a+(n-1)d, where t is the term you want to calculate, a is the first term of the sequence, n is the number of the term you want to calculate, and d is the difference between consecutive terms. For example, if you want to know the 20th term in the sequence 1, 3, 5, …, then t is the answer you’re looking for, a=1, n=20, and d=2. I type these four equations into Zoom Math:

a = 1
n = 20
d = 2
t = a+(n-1)d

And Zoom Math gives me the correct answer t = 39.

Quote

    "Where I was spending 20+ hours on homework, Zoom reduced it to under 10." - Lori B. Los Angeles, CA

    "The Trace function is invaluable because it allows me to relax and check my work. I can catch my errors on the spot." - Lori B., Los Angeles, CA

    "What I like is that it allows me to totally grasp the concepts of Algebra like never before." Lori B, - Los Angeles, CA

    "Prior to using Zoom I had debilitating anxiety over math success, now that fear is completely gone." - Lori B., Los Angeles, CA

    "I am a 43 yr old mom of five sons and going back to college has been a struggle and math is one of my weakest areas. I must say that ZOOM MATH got me through this hard process wonderfully" - Sabrina K. Tampa, FL

    "This app has saved my life!" - Natalie W. Portland, OR

    "Your programs were instrumental in helping me pass and more importantly, understand, the Algebra and Business/Finance math courses that I had to take to obtain my Associates degree." - Mark C. Buffalo, NY

    "Prior to teaching myself with Zoom Math my ACT on the math section was 24 three times in a row. After studying the problems I missed with Zoom Math's Trace feature as my guide I was able to pull my math section of the ACT up to a 31. I now have a 30 composite score and a full ride to the University of Alabama and you guys are 100% responsible!" - Andrew T., Sacramento, CA

    "We received my son's MCT scores from 10th grade (end of last year). He jumped 3 levels and scored highest in his class." - Kathy J. Austin, TX

    "I completed my math course 6 1/2 weeks ahead of time. It would not have been possible without your ZOOM 300 SOFTWARE. If I had your product at the beginning of my 24 week course I would have completed this course within 2 weeks." - Bernard P., Los Angeles, CA

Learn More