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12-749: (Redirected from SR-10 ) SR10 or SR-10 may refer to: the Texas Instruments SR-10, a predecessor of the TI SR-50 pocket calculator ; State Route 10 , one of several highways numbered 10 worldwide; the SR-10, a variant of the Stinson Reliant , a monoplane from the 1930s; the KB SAT SR-10 , a contemporary Russian jet trainer aircraft. [REDACTED] Topics referred to by

24-878: A seven-segment display plus decimal point. A blinking display indicated an error, such as a calculation error or an overflow or underflow condition. Like most scientific calculators, the SR-50 mostly used ordinary infix notation , as opposed to the postfix Reverse Polish Notation (RPN) employed by its main competitor, the Hewlett Packard HP-35. The SR-50 followed the standard order of operations by performing unary (single-argument) operations (reciprocal, square, square root, log, trig and hyperbolic trig functions) immediately, and multiplication, division, root, and power operations before addition and subtraction operations. But: you had to enter parameters first when using single-argument operations (e. g. 30 sin). As an example,

36-436: A red LED display with a signed ten-digit mantissa plus a signed two-digit exponent for floating point numbers (negative values were indicated with a leading minus sign and positive values with no sign). Internally, calculations were performed with a 13-digit mantissa , providing much greater calculation accuracy than the 10-digit precision of most scientific calculators of the time. After the leading sign, digits consisted of

48-570: A slot above the programmable keys with its markings visible. In 1976 Texas Instruments released the TI-30 budget calculator at one-third the price of the SR-50, so sales of the SR-50 quickly dropped. HP-45 The HP-45 is the second scientific pocket calculator introduced by Hewlett-Packard , adding to the features of the HP-35 . It was introduced in 1973 with an MSRP of US$ 395 (equivalent to $ 2,711 in 2023). Especially noteworthy

60-471: Is different from Wikidata All article disambiguation pages All disambiguation pages TI SR-50 The SR-50 measured 5-3/4 inches long by 3-1/8 inches wide by 1-3/16 inches high (147 mm by 78 mm by 31 mm) and was powered by a rechargeable NiCad battery pack, built from three welded AA cells. It had 40 keys, and flat sliding switches for degrees / radians and on/off. "SR" stood for " slide rule ." The SR-50 had

72-433: The "arc" and "hyp" keys (in any order) and then pressing the "sin", "cos", or "tan" key. Hyperbolic trig arguments were always assumed to be in radians regardless of the setting of the degree/radian (D/R) mode switch. In addition to its three-register operational stack, consisting of X, Y, and Z registers, the SR-50 also included one memory (M) register to which the value in the X (display) register could be directly added using

84-625: The "summation" key. The SR-50 had very fast trig functions (about half a second to evaluate each function) and was a popular calculator to use in contests involving pocket calculators. The SR-50 was followed by the more advanced model SR-51 . The SR-51 had the same physical dimensions but added a 2nd function for most buttons. Most notable among the added functions were the ability to enter x:y pairs and do linear regression analysis on them. The later and lighter versions SR-50A and SR-51II and SR-51III were based on smaller ICs and battery packs and reached broadest distribution. A further update resulted in

96-532: The X and Y registers in its operational stack. An unusual feature of the SR-50 was that its included functions like factorial and hyperbolic trig functions , which were found on very few calculators (including the HP-35 and HP-45 ) at the time. The user invoked the hyperbolic functions by entering the function argument and then pressing the "hyp" key, followed by the "sin", "cos", or "tan" function key. The inverse hyperbolic functions were accessed by first pressing

108-484: The keypresses to calculate "3 x log(4) + 5" was entered almost as written, namely "3 x 4 log + 5 =". This is because the calculator would execute the log function before performing the multiplication operation, and complete the multiplication operation before executing the addition operation. It did so by having unary operations operate on the X register, addition and subtraction operate on the X and Z registers, and multiplication, division, power, and root functions operate on

120-427: The programmable model SR-52 in late 1975. It was thicker and longer and could perform 224 program steps recorded on magnetic cards, similar to its competitor HP-65 . The card was pulled through the reader by an electric motor. The matte white upper face of the cards could be marked with pen or pencil to indicate the program and the functions assigned to the calculator's programmable keys. The card could be stored in

132-448: The same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=SR10&oldid=833376481 " Category : Letter–number combination disambiguation pages Hidden categories: Short description

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144-456: Was its pioneering addition of a shift key that gave other keys alternate functions. The calculator was code-named Wizard , which is the first known use of a code name for a calculator. It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode. An accurate version of the stopwatch mode was officially featured in the 1975 successor of the HP-45,

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