Question about Texas Instruments TI-84 Plus Calculator

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Calculator won't graph right

I can't get it to graph a sin or cos graph right

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  • wowoas Mar 29, 2008

    yes that was it, thanks

  • Anonymous Apr 01, 2008

    how do you correctly punchin sin 30. I can do it by hand and get 1/2 but the calculator gives me a way different answer when I punch in sin (30)

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Try seeing if the mode is in radians or degrees, it must be in radians

Let me know if this works

Posted on Mar 29, 2008

  • Benjamin Patri
    Benjamin Patri Apr 16, 2008

    change your mode from radians to degrees by clicking on the mode button and the third line down you can change the option you're probably getting a very small number around negative 1 with punching in sin 30

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SOURCE: Hey, Recently, I've been trying to

Having gone over a month without a response to my query, I assume it was a matter of the angular mode setting

Posted on Oct 27, 2010

  • 7987 Answers

SOURCE: im trying to graph a

To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
As regards the cotangent, use the equivalent definition cot(X)=1/tan(X).

Posted on Jul 26, 2011

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To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
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