Thursday, March 31, 2016

Video: The Area of an Ellipse: A Derivation

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Video:   The Area of an Ellipse: A Derivation Link:   https://www.youtube.com/watch?v=JaFc2BsVWSU This blog is property of Edward Shore...
Wednesday, March 30, 2016

A Quick Look At the Casio Classpad fx-CP400

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Casio Classpad fx-CP400 Price: I paid $142.99 on Amazon, some vendors charge up to $169.00 Screen: 4.8" diagonal  Memory: 515,000 bytes...
Wednesday, March 23, 2016

PrgCalcPro: One Variable Statistics

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PrgCalcPro: One Variable Statistics Instructions: Initialize the parameters: [JUMP] 31 [RUN] Enter the data:  X [RET] [RUN] Analyze: [JUMP] ...

Casio fx-5800p: Barometric Formula

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Casio fx-5800p: Barometric Formula This program estimates the Barometric pressure at height H (given in meters).  This formula tends to work...

Casio fx-5800p: Histogram

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Casio fx-5800p: Histogram The program HISTOGRAM draws a histogram for up to four data points using the Locate command.  The screen of the fx...
Sunday, March 20, 2016

PrgCalcPro: Great Circle: Distance Between 2 Places on Earth in kilometers

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PrgCalcPro: Great Circle: Distance Between 2 Places on Earth in kilometers Important: Switch the calculator to Degrees mode before calculati...

PrgCalcPro: Fibonacci Number

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PrgCalcPro: Fibonacci Number  F_n = F_n-1 + F_n-2 via formula ((1+√5)^n) - (1-√5)^n)/(2^n * √5) Sequence where F0 = 0, F1= 1, F2 = 2, etc.  ...

PrgCalcPro: Third Law of Kepler

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PrgCalcPro:  Third Law of Kepler: Approximate Time of Orbit in Years Formula:    P = √((4*π^2*a^3)/(G*(m1+m2)) P is then divided by 3.15576*...

PrgCalcPro: Summation

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PrgCalcPro: Summation Summation This program uses a loop to determine Σ f(X) from a to b.   The function f(X) starts on Line 22.  Use Memory...

Programming with the PrgCalcPro iOS App

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App Creator: SekApps Price: I paid $0.99 Platform: iOS Memory: 1,000 steps with 100 registers  The PrgCalcPro is based on the Russian scient...
Thursday, March 17, 2016

Two Calculators Added to the Collection (Sharp EL-510RN and Calculated Industries Model 8510)

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Two calculators which I recently added to the collection:     Sharp EL-510RN Type: Scientific Battery: Solar/Battery Bac...
Monday, March 14, 2016

Pi Day 2016

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Happy Pi Day, Eddie
Thursday, March 3, 2016

Casio fx-5800p: Complex Numbers Calculations: e^z, ln z, z^w

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Casio fx-5800p:  Complex Numbers Calculations: e^z, ln z, z^w Let z = a + bi = r*e^(θi) and w = c + di = s*e^(αi) where i = √-1 ...
Wednesday, March 2, 2016

HP Prime and Casio fx-5800p Approximating the Factorial Function

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HP Prime and Casio fx-5800p Approximating the Factorial Function A quick way to estimate the factorial function, which is good for all...