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Showing posts from March 23, 2019

Sky Bishkek

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Not to be confused with Air Bishkek. Sky Bishkek IATA ICAO Callsign GY BIS – Founded 2012 Ceased operations 2015 Hubs Manas International Airport Fleet size 1 Destinations 3 Headquarters Bishkek, Kyrgyzstan Website www.skybishkek.kg Sky Bishkek was a regional airline based in Bishkek, Kyrgyzstan. Its main base was Manas International Airport. Contents 1 Destinations 2 Fleet 3 References 4 External links Destinations Sky Bishkek served the following domestic destinations: [1] Batken - Batken Airport Bishkek - Manas International Airport base Osh - Osh Airport Fleet A Sky Bishkek Saab 340 at Isfana Airport. The Sky Bishkek fleet included the following aircraft: Sky Bishkek Fleet Aircraft In Fleet Orders Passengers Saab 340 1 — 36 Total 1 0 References ^ "Sky Bishkek Timetable". Sky Bishkek Airlines. Archived from the orig...

Osh

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For other uses, see OSH (disambiguation). Place in Osh Region, Kyrgyzstan Osh Ош Flag Seal Osh Location in Kyrgyzstan Coordinates: 40°31′48″N 72°48′0″E  /  40.53000°N 72.80000°E  / 40.53000; 72.80000 Country Kyrgyzstan Region Osh Region Government  • Mayor Aitmamat Kadyrbaev Area [1]  • Total 182.5 km 2 (70.5 sq mi) Elevation 963 m (3,159 ft) Population (2017) [2]  • Total 281,900 Time zone UTC+6 (KGT) Website http://oshcity.kg Osh (Kyrgyz and Russian: Ош ; Uzbek: O‘sh ) is the second largest city in Kyrgyzstan, located in the Fergana Valley in the south of the country and often referred to as the "capital of the south". [3] It is the oldest city in the country (estimated to be more than 3000 years old), and has served as the administrative center of Osh Region since 1939. The city has an ethnically mixed population of about 281,900 in 2017, [2] comprising Uzbeks, Kyrgyz, Russians, Tajiks, and o...

Why is minimize_scalar not minimizing correctly?

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1 I am a new Python user, so bear with me if this question is obvious. I am trying to find the value of lmbda that minimizes the following function, given a fixed vector Z and scalar sigma: def sure_sft(z,lmbda, sigma): indicator = np.abs(z) <= lmbda; minimum = np.minimum(z**2,lmbda**2); return -sigma**2*np.sum(indicator) + np.sum(minimum); When I pass in values of lmbda manually, I find that the function produces the correct value of sure_stf. However, when I try to use the following code to find the value of lmbda that minimizes sure_stf: minimize_scalar(lambda lmbda: sure_sft(Z, lmbda, sigma)) it gives me an incorrect value for sure_stf (-8.6731 for lmbda = 0.4916). If I pass in 0.4916 manually to sure_sft, I obtain -7.99809 instead. What am I doing incorrectly? I would appreciat...