The TI-30XA is one inexpensive clinical calculator approved for usage on SAT and also ACT tests, 2 of the most common college enntrance gate exams, and also on advanced Placement exams. You might not take it your very own calculator to this exams, so become familiar forward with specific capabilities and also limitations of the TI-30XA calculator handed out through the test. Pay one-of-a-kind attention to the second role key, the method you usage calculator memory and also the keystrokes needed for decimals, fractions, blended numbers, exponents and powers.

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Key components to save in mind once using the TI-30XA scientific calculator: the yellow second-function key


You’ll seldom employ some of the 30XA’s an ext esoteric features when taking the university entrance and progressed Placement tests. One key function the you might not be familiar with, however, is crucial for successful completion of the test. This is the yellow <2nd function> an essential at the upper left-hand corner of the keyboard. This key shifts the focus away from the role on the face of the key and top top the role printed in yellow above it.


For example, to uncover 17 percent of 342, you go into <342> <×> <17>, then press <2nd function> <2>. This activates the second function that appears in yellow over the 2 key, i m sorry is <%>. The bespeak of keystrokes matters as soon as using the 2nd function key, which constantly carries the end the procedure on the value you keyed in immediately before girlfriend hit the second function key. If you key in <17> <×> <342> <2nd function> <2> instead, the calculator will compute the value for 342 percent of 17.


Hit the crucial to store a number in one of three memory areas. For example, to save the product that 20 × 167 in memory one, hit <20> <×> <167>, <1>. To recall a number from any type of of these storage areas, struggle the recall key, , complied with by the variety of the memory area. For example: <1>.


The entry process for fractions and also mixed number takes time to gain used to. To get in either a fraction or a combined number usage the crucial in the left-most pillar – the second key from the bottom. The bespeak entry for 1/2, because that example, is <1> <2>. Transform mixed number to fractions using the second function ~ above the key. For example, to transform 3 1/2 to an improper fraction enter the mixed number, then hit the second function key, climate the key. The second role of the crucial is . Because that example: <3 1/2> becomes 7/2.

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You can raise any kind of base number to any power by utilizing the an essential – talked of together "​y​ to the ​x​" – above the department key in the right-most column. To find the value of 35, vital in <3> <5> <=>. Because that powers of "e," such together "e" come the fifth, an essential in <5> <2nd function> <=>. The second role of LN is "e come the ​x​." “LN” means “natural logarithm.”


Patrick Gleeson got a doctorate in 18th century English literary works at the college of Washington. He served as a professor that English in ~ the college of Victoria and also was head of freshman English at mountain Francisco State University. Gleeson is the manager of technical publications for McClarie Group and manages an investment fund. The is a Registered investment Advisor.