mrithula
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Thank you....I have written 10 lines of code to achieve this....this is quite nice...
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The sample string is KmSO4 Every upper case alphabet should be identified and splitted until another upper case alphabet comes. the string should be splitted so that output array looks like this Array ( [0] => Km [1] => S [2]=>O4 ) can any one help regarding this issue?
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I need regular expression to validate the following input possible inputs: sin(x)+cos(x) cos(x)-sin(x) sin(x)-cos(x) Error shoud be displayed if any other character except sin(x),cos(x),+ and - is used can some one help me?