Question about Texas Instruments TI-81 Calculator

# Cos syntax In the problem 202.5cos(-296.4) I get an error when entering as written. What am I doing wrong?

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Use 202.5*cos(63.6) instead. since it is the same angle it will be the same result.

Posted on Feb 15, 2008

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Posted on Jan 02, 2017

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In computer science a syntax error ( IPA: /ˈsɪntæks ɛrə(ɹ)/ ) refers to an error in the syntax of a sequence of characters or tokens that is intended to be written in a particular programming language.
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feel free to ask any other questions

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### How do I stop getting the synthx error

Hello,
The calculator will stop screaming out SYNTAX ERROR, when you stop ordering it to do things the wrong way.
Take a look at the manual.
For certain calculations you enter the number first and then press the function key.
For others, you press the function key then the number.
If an expression contains a left parenthesis, it must also have a closing right parenthesis.
It you want to enter negative 5, you use the change sign (-) not the regular MINUS sign.
These are exemples of instances where you get a syntax error. For every new type of calculation you have to perform, read the exemple in the manual to find out which must be entered first: the number or the function.
Hope it helps.

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