115ES Plus;- Button layout requires the shift key for most useful functions common to its level of use.- User interface is to harder to delete/add/modify

Excellent functions for the every day engineer

Let me list the amazing functions of the calculator since there seems to be now real list on the internet.1

Many reviews focused on the fact that a few functions are harder to get to, this is true of those functions, but in general you are getting a more powerful calculator out of the deal.

Great price and functions well.

Good functions and price.

All the functions and the options to perform fractions and the quadratic and cubic solvers are wonderful.

They small, lightweight, and have a lot of great functions.

It even has functions not available on the TI-84 Plus CE:A. You can solve systems of equations with 2 to 3 variables without appropriating matrix functions for the chore

While most of the keys are highly readable, the 4-function keys (add, subtract, multiply and divide) are silvered so that the key functions can only be seen by putting the calculator in just the right angle to the light

so many useful functions rather than carrying around a TI 84 Calculator

It has many more functions than other scientific calculators, yet it's still easy to use

Other than that the calculator is much like the standard set-up's for TI and other functions seem to work well.

Table functions work tho

A very good function that's vital for an engineer or mathematician

After running all of its useful functions, and messing around with it, I have come to the opinion that TI calculators are the gold standard of calculators.pros: Its the mightiest and most powerful scientific calculator

Helps leaps and bounds over a TI-30 which has one line of text and limits your functions greatly.

Some functions, such as with vectors, are cumbersome to produce.4

It has great vector and matrix functions and a system of equation

Matrix and vector functions are handy

Good calculator approved for the FE exam, as many functions as a graphing calculator (without graphing capabilities of course).

It has multiple lines, integrals, derivatives, almost every function you need for the test

GREAT lower priced calculator with almost all the important functions of the $200 ones and simple to use too.

Now with that in mind, I still decide to use the 36 instead of the 30 during my tests, even though I wasn't going to be using the integral, derivative and rref functions.

It has a lot of handy functions, but with the rush on the exam they didn't really get used much.

Every function is easily accessible

Being able to use simple functions like solve saved me precious time and played a factor in my passing the exam.

it's useful preset functions/constant values.

works perfect all the functions you need for a non graphing calc

Another thing that I miss is the list function available in better TI models

but this has worked great and functions just as well.

Nice boxplot function

Slim and has many functions such as integrals and derivatives.

Some product images for this laying show white function keys with black markings, but the blister pack image still has the crappy silver function keys that mine has -- suggesting that TI has learned their lesson and corrected this design flaw, then provided blowout discounts on the original inventory

Easy interface and useful functions such as speed/length conversions and a library of constants

The main function keys (far right column) are very hard to read

This function was very helpful in Calc 3.

If I'm not actually graphing a complex function, I prefer this to an expensive graphing calculator BY FAR.

Its a wonderful little calculator with many useful functions

Great Phasor Calculator for Electrical Engineersthese are just my favorite functions but there is SOOOOOOOOO much more

The functions are easy to get to and it has a wealth of features.

A huge advantage it has over others are the trigonometric functions and it expresses them in radical

I love the basic integrating and algebra functions on this device

very difficult to read the silvered keys - they reflect light too much, can not read the key function.

This is so easy to use, has so many useful functions and is just overall a better calculator than my 84

It is so easy to use, has every function I could ever want, and I love the color and the way it looks

Easy to use and has useful functions, my favorite are evaluating definite integrals, and solving systems of equations without using matrices

Performs many useful functions - keys are a little difficult for me to read

The views for integrals, derivatives, and stats functions perfectly mirror my

Another thing about buttons are that the trig and their respective inverse trig functions, such as sin and arcsin, are on the same button which you can press multiple times to switch between the original and inverse

There are a lot of very handy functions and features that even the normal person can make use of pretty regularly.

Many functions, quite good for High School and University student

It has a lot of useful functions

Several useful functions on this solar-powered calculator, highly recommend application for FE examination

The integral evaluation function is not as accurate as the TI-84's approximation, and it takes more time too

It has some of the familiar button placements that will help transition from the more powerful models, but retains many of the same powerful functions

The quadratic solver is already programmed, it has vector functions, integral functions, etc. etc

Cons: shiny (c... Read more

Cons: shiny (c... Read more

n’t work