Your cart is empty.
Your cart is empty.The fx-991es plus 2 is a scientific calculator ideal for secondary school and university degrees with natural ‘natural textbook display’ to display formulas and results exactly as in textbooks. Equipped with 417 functions, including: Equation resolution, calculation of synthesis values and variability indexes, matrix and vector calculation, regression and correlation coefficients, complex numbers, calc key (temporary memory formula), 40 physical constants, integral and differential calculus Combined power supply: Solar and alkaline button cell LR-44.
EE/IE
2025-09-04 14:07:56
Need to take the FE/PE?The test is limited to a few models.This is the best algebraic allowed:1) good menu organization, easy to use2) 2nd and 3rd degree polynomial solvers3) 2 and 3 element matrices and vectors4) numeric derivatives and integrals5) complex numbers6) engineering notation7) constants and conversionsAll built-in, no need to program.A big plus is cost is nominal.One drawback to this model isit slides all over. Add rubber feetto case bottom as a fix. (see pic)
Michael Heijmans
2025-09-02 12:23:35
I do electronics engineering and I always need to calculate semi-complex stuff. A non scientific calculator is a pain and I find that the ti-84 is a bit much if you’re not doing advanced math or statistics. This calculator is perfect for the bench calculations while designing circuits. Plus because it’s not a small fortune, I carry it around all the time without worry of dropping it etc. my colleagues call me Egon now because I just pull out the calculator and start calculating in random situations and conversations. For the price, you really can’t go wrong.
hanan Yousef
2025-08-31 11:28:20
I bought this to my nephew for his high school he likes it he said it’s very good one he ever used
Benjamin Perez
2025-08-26 15:21:46
Mi hijo la usa a diario en el colegio , recomendada
Avi Parshan
2025-08-25 13:03:21
As a college CS student, this calculator is a must have... the ti 84 is too powerful and has Graphing and programming which are not allowed in 99% of the classes ... so this is a good runner upIt does up to 3x3 matrices , does some integrals and derivittives at a point... does base conversions between decimal hex ,and binary (octal too).It also finds roots for quadratic functions, overall it is easy to use and get the hang of it ...
Nelson
2025-08-20 14:09:24
Got this for my daughter who needed it in college for chemistry classes. She said it works great! Would recommend.
Romario Johnson
2025-08-19 12:58:55
I've had this for about 2 years now. It's still going strong.
Kerona McLeod-Bird
2025-08-18 12:59:30
Excellent product for cheap! Worth every dollar. Best calculator, I have used.
Luis Robledo
2025-08-11 17:56:11
El producto es muy buena para el estudiante de secundaria. A buen precio pero pésimo servicio de entrega. Lo aventaron a mi patio sin avisar que ya lo habÃan dejado. No supe ni qué dÃa lo dejaron.
Luis Aquino
2025-08-03 21:32:42
Gutes Produkt, pünktlich und funktioniert einwandfrei.
Jelte Koster
2025-07-31 16:37:41
A very smart calculator. It has everything you need to study
Sk
2025-07-28 13:35:29
Rien à dire de plusCalculatrice casio fonctionnelle
AMIRHOSSEIN TAVAKOLI
2025-07-27 11:06:13
Everything is perfectThat's what I want 👌
EE/IE
2025-07-25 13:00:21
Need to take the FE/PE?The test is limited to a few models.This is the best algebraic allowed:1) good menu organization, easy to use2) 2nd and 3rd degree polynomial solvers3) 2 and 3 element matrices and vectors4) numeric derivatives and integrals5) complex numbers6) engineering notation7) constants and conversionsAll built-in, no need to program.A big plus is cost is nominal.One drawback to this model isit slides all over. Add rubber feetto case bottom as a fix. (see pic)
Michael Heijmans
2025-06-28 15:20:14
I do electronics engineering and I always need to calculate semi-complex stuff. A non scientific calculator is a pain and I find that the ti-84 is a bit much if you’re not doing advanced math or statistics. This calculator is perfect for the bench calculations while designing circuits. Plus because it’s not a small fortune, I carry it around all the time without worry of dropping it etc. my colleagues call me Egon now because I just pull out the calculator and start calculating in random situations and conversations. For the price, you really can’t go wrong.
hanan Yousef
2025-06-19 18:28:05
I bought this to my nephew for his high school he likes it he said it’s very good one he ever used
Benjamin Perez
2025-06-16 13:56:09
Mi hijo la usa a diario en el colegio , recomendada
Avi Parshan
2025-06-02 10:57:19
As a college CS student, this calculator is a must have... the ti 84 is too powerful and has Graphing and programming which are not allowed in 99% of the classes ... so this is a good runner upIt does up to 3x3 matrices , does some integrals and derivittives at a point... does base conversions between decimal hex ,and binary (octal too).It also finds roots for quadratic functions, overall it is easy to use and get the hang of it ...
Nelson
2025-05-11 17:58:39
Got this for my daughter who needed it in college for chemistry classes. She said it works great! Would recommend.
Romario Johnson
2025-05-04 14:27:58
I've had this for about 2 years now. It's still going strong.
Kerona McLeod-Bird
2025-04-29 17:53:09
Excellent product for cheap! Worth every dollar. Best calculator, I have used.
Luis Robledo
2025-04-13 17:43:49
El producto es muy buena para el estudiante de secundaria. A buen precio pero pésimo servicio de entrega. Lo aventaron a mi patio sin avisar que ya lo habÃan dejado. No supe ni qué dÃa lo dejaron.
Luis Aquino
2025-04-07 11:07:28
Gutes Produkt, pünktlich und funktioniert einwandfrei.
Jelte Koster
2025-03-20 12:43:16
A very smart calculator. It has everything you need to study
Sk
2025-02-13 13:42:59
Rien à dire de plusCalculatrice casio fonctionnelle
AMIRHOSSEIN TAVAKOLI
2025-02-05 11:37:16
Everything is perfectThat's what I want 👌
Recommended Products
