scientific calculator

基本解釋

A 50-line scientific calculator
一個 50 行代碼的科學(xué)計算器
Remember struggling with reverse Polish notation on your first scientific calculator?
還記得在您的第一臺科學(xué)計算器上用逆波蘭表示法奮斗的經(jīng)歷嗎？
When Hewlett-Packard invented the HP-35, the first hand-held scientific calculator, in 1972, the device was banned from some engineering classrooms.
1972年，惠普發(fā)明第一個手提科學(xué)計算器HP-35時，該設(shè)備在某些工程學(xué)課堂上被禁用。

And if you have your calculator all set up as you love and you don't want to change it, then maybe you should just go and get an $8.00 scientific calculator that doesn't have any of the graphing functions, because you don't actually need them, so that's a better option for you, you can do that as well.
如果你的計算器里已經(jīng)按照你的喜好編好了,而你又不想改動，那么或許你可以,去再買一個八美元的科學(xué)計算器,它沒有任何繪圖功能，因為實際上你也用不到這些，所以這對你來說是一個更好的選擇，你也可以這樣做。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

In 1985, Casio introduced the world's first graphing calculator, the fx-7000G, and in 2004 the company released the fx-82ES scientific calculator with textbook display that shows fractions and root functions as they appear in textbooks.
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The forecasts come from a unique open-source analysis package, called the 2050 pathways calculator, which was created by Professor David MacKay, chief scientific adviser to the Department of Energy and Climate Change.
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