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Have you ever used a slide rule?   The Real You: Personality Poll

Started Sep-28 by WALTER784; 399 views.
WALTER784

Poll Question From WALTER784

Sep-28

Have you ever used a slide rule?
  • Yes7  votes
    50%
  • No7  votes
    50%
  • What is it? (See next post)0  votes
    0%
Yes 
No 
What is it? (See next post) 
In reply toRe: msg 1
WALTER784

From: WALTER784 

Sep-28

This is the front and back of a slide rule like the one I used in high school.

The slide rule is a mechanical analog computer. As a graphical analog calculator, the slide rule is closely related to a nomogram; the former is used for general calculations, the latter for application-specific computations. The slide rule is used primarily for multiplication and division, and also for functions such as exponents, roots, logarithms, and trigonometry, and typically not for addition or subtraction.

Slide rule - Wikipedia

FWIW

Showtalk
Host

From: Showtalk 

Sep-28

Actually yes because my dad had one and showed me. But not in school.

WALTER784

From: WALTER784 

Sep-28

Showtalk said...

Actually yes because my dad had one and showed me. But not in school.
In 1970 I took Algebra I in the 7th grade.
In 1971 I took Algebra II in the 8th grade.
In 1972 I took Algebra III in the 9th grade.
In 1973 I took Geometry in the 10th grade.
In 1974 I took Trigonometry in the 11th grade.
In 1975 I took Calculus in the 12th grade.

For grades 7 ~ 11, portable scientific calculators were not yet invented so I used the slide rule.

In 1975, my dad bought me a $145 Hewlett Packard scientific calculator for my 12th grade and I gave up using the slide rule because it was much more accurate. I still have that one tucked away in a box somewhere in my house today but don't remember where I put it.

FWIW

Showtalk
Host

From: Showtalk 

Sep-28

What is Algebra III?

WALTER784

From: WALTER784 

Sep-29

  • Edited September 29, 2021 1:01 am  by  WALTER784
Showtalk
Host

From: Showtalk 

Sep-29

Ok, then. Most high schools don’t offer that, even today.

WALTER784

From: WALTER784 

Sep-29

Showtalk said...

Most high schools don’t offer that, even today.

I took mine in Jr. High.

In High School, I had Geometry, Trigonometry and Calculus.

Edited to add: [But that was back in 1970 ~ 1976!]

FWIW

  • Edited September 29, 2021 11:35 am  by  WALTER784
Showtalk
Host

From: Showtalk 

Sep-29

I checked. My state offers Alg 1 in 8th grade. Alg 2, Geometry, PreCalc, Calc, Trig and statistics are offered in high schools. No Algebra 3. It’s possible those topics are included in other classes or in AP Algebra 2.

.

WALTER784

From: WALTER784 

Sep-29

They could have combined most of them into Alg I & II and then moved the really difficult ones into Geometry.

That was quite a while ago.

And you keep mentioning only High School but the ones I took were in Jr. High. So maybe they simplified it for the younger grades back then and then combined it for High School afterward?

FWIW

  • Edited September 29, 2021 7:57 pm  by  WALTER784
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