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And " R " is the result , and you should try to explain the result ending on a positive note . The LRP instruction performs a component-wise linear interpolation to yield a result vector . When a check fails , your compiler is expected to compute a result at the point of the check that will permit the compiler to keep checking subsequent expressions or statements . So if you expect the output of your test sequence to leave a result that may take a long time to format and you do n't wish to count this formatting time , end your sequence with a DEL keystroke to clear the result from the stack . The latter are activated by a function designator as a constituent of an expression and yield a result that is an operand of the expression . A user can browse a list of alphabetical topics with a sense of security that each topic will yield a result and the resulting page will have more than just a cursory mention of the topic . The DDY instruction computes approximate partial derivatives of the four components of the single operand with respect to the Y window coordinate to yield a result vector . The DDX instruction computes approximate partial derivatives of the four components of the single operand with respect to the X window coordinate to yield a result vector . All instances of MyMod will assign the result of the start command to the global interpreter variable mod .